Enemies (Leap Day series)

Enemies in Leap Day and Super Leap Day harm the contestants on contact, sending them back to their most recently activated checkpoint. Most enemies can be killed by jumping on their heads, but they will all respawn if the player dies and restarts from a checkpoint. They also will respawn at the exact place they start the movement. Most of them follow a set pattern, moving from left to right like the player.

On Leap Day's initial launch, the game had a set of enemies that could appear in any of the themes. Later additions are exclusive to one or two themes.

Note: Unless otherwise stated, information on this article only applies to Leap Day.

Navigation

Initial release   Soldier Mushroom Green runner Spike head Spike shells   Mud monster Crocodiles Fire skull Trunky Squids   Stone monster Spring head Bird Bomb Beast   Pig Radish Ants Jungle plant Dragon   Blob Cactus Monster Bat Duck Version 6.0 (Halloween)   Fish skeleton Version 8.0 (Winter)   Woolly Trunky Big Woolly Trunky Flying diamond Ice Charger Horned monster Version 9.0 (Valentine's Day)   Archer Pink blob Version 11 (1st Anniversary)   Candle soldier Large jungle plant Mushroom soldier Fruit bat   Grub Homing missile Version 12   Attack crab Attack crab fish Eels Mr. Cloud   Cauldron fish Tomahawk Totem Fruit Mimics Version 13   Lightbulbs Version 14 (2nd Anniversary)   Toxic Sludge Mini Sludges Mud Crawler Version 15 (3rd Anniversary)   Swamp Snail Small Mushroom Slot Block Ice Blob Trunky Copter Version 16   Propeller fluff Mr. Blow Meteorite Cuckoo clock Palmtree creature Version 17 (4th Anniversary)   Sewer spitter Cactus tornado

Initial launch

These enemies have appeared in a wide variety of themes and have been present ever since the game's release.

Soldier
Theme(s)	Leap Day: Castle, etc. Super Leap Day: All
First appearance	Leap Day: May 11, 2016 Super Leap Day: August 5, 2021
Movement	Walks back and forth
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	When this enemy dies, it leaves behind its helmet. The helmet moves back and forth at a fast speed and will fall off ledges if it goes towards one, killing the player if they are directly in its way. The helmet is removed if the player jumps on top of it. In Leap Day, if Scrambled or Hard Boiled kill a soldier, it does not leave behind its helmet. In Super Leap Day, soldiers act the same as in Leap Day but in this game they will stab forward if they are facing and near the player. Unlike in the previous game, helmets are able to kill other soldiers. Yolk pets will kill soldiers in one hit. The soldier's helmet also appears on the icon for Rainy Ruins and on curved stone blocks.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A soldier's helmet sliding on the floor in Leap Day A soldier's helmet after dying in Leap Day In Super Leap Day The soldier's helmet on the icon for Rainy Ruins A soldier in the Super Leap Day Version 1.1 Twitter banner used on the Nitrome account

Mushroom
Theme(s)	Castle, etc.
First appearance	May 11, 2016
Movement	Moves back and forth on the ground
Contact	Deadly on the sides and bottom Can be bounced on from the top
Behaviour	This enemy jumps at the same time as the player's initial jump, usually off the ground or wall. It falls off any open edges, but turns at walls and steps.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A mushroom jumping A mushroom upon dying

Green runner
Theme(s)	Castle, etc.
First appearance	May 11, 2016
Movement	Runs back and forth on the ground
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	This enemy moves back and forth at around 2/3 of the player's speed and turns at walls and ledges.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Unknown
Gallery A green runner upon dying

Spike head
Theme(s)	Castle, etc.
First appearance	May 11, 2016
Movement	Walks back and forth on the ground
Contact	Deadly at all angles
Behaviour	This enemy behaves similarly to the green runner in that it walks back and forth constantly, except it cannot be killed by jumping on top of its head.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A spike head after dying

Spike shells
Theme(s)	Leap Day: Castle, Electricity, etc. Super Leap Day: All
First appearance	Leap Day: May 11, 2016
Movement	Moves on the edge of any surface
Contact	Deadly from all angles
Behaviour	In both games this enemy walks along the edge of any smooth surface, turning corners and continuing in one direction until they hit a wall or spike. Red spiked shells walk faster than blue ones. In Super Leap Day, only red spike shells appear, and they can be killed by the rainbow star powerup. When killed this way in this game, it can be seen that under their shells they are yellow spherical creatures with four legs. Yolk helpers will kill them.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A blue spike shell in Leap Day A red spike shell in Leap Day A red spike shell after dying in Leap Day A blue spike shell after dying in Leap Day A red spike shell in Super Leap Day A red spike shell when killed in Super Leap Day. A red spike shell in the Super Leap Day Version 1.1 Twitter banner used on the Nitrome account

Mud monster ✔
Theme(s)	Castle, etc.
First appearance	May 11, 2016
Movement	Back and forth on the ground slower than the player, turns at ledges and walls
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	When jumping or using Hard Boiled's ability on a mud monster, the enemy comes to a complete stop, allowing the player to pass through it without dying. After a few seconds, the enemy reforms itself and resumes its normal moving pattern.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — No Hard Boiled — No
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A mud monster after being hit A mud monster coming back to life, before regenerating its mud

Crocodiles
Theme(s)	Castle, Windy, Magma, etc.
First appearance	May 11, 2016
Movement	Walks back and forth Turns at walls and edges of platforms
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	When this enemy sees the player, it will attack by sticking out its tongue briefly, which extends a short distance. Green crocodiles attack immediately upon seeing the player. The red variant walks faster than its green counterpart, but has a slight delay before attacking.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A green crocodile A red crocodile An attacking green crocodile An attacking red crocodile A green crocodile after dying A red crocodile after dying

Fire skull
Theme(s)	Leap Day: Castle, Magma, etc. Super Leap Day: All
First appearance	Leap Day: May 11, 2016 Super Leap Day: August 5, 2021
Movement	Floats diagonally
Contact	Deadly from all angles
Behaviour	Fire skulls appear in both Leap Day games and move diagonally, bouncing off walls and other obstacles. They can pass through each other if more than one fire skull is encountered within the same area. In Super Leap Day they can be killed by being bumped by a silver block or by the rainbow star power-up and may also drop a power-up when killed.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A fire skull in Leap Day upon dying A fire skull in Super Leap Day

Trunky
Theme(s)	Leap Day: Spooky, Windy, Magma, etc. Super Leap Day: Rainy Ruins, Capital Highway
First appearance	Leap Day: May 12, 2016 Super Leap Day: Training level
Movement	Walks back and forth
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	Upon crossing in front of this enemy, it charges up and shoots a snot bullet that travels away from it rapidly in a horizontal direction. The snot does not go through walls. In Super Leap Day, they will charge twice and fire a snot bullet, and this time will do it even if the player passes in front of them but is behind a wall.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A trunky in Leap Day while sneezing its projectile A trunky in Leap Day after dying The snot shot by trunky enemies in Leap Day A trunky in Super Leap Day A trunky on the cartridge for Leap Day shown on the loading screen A trunky in the Super Leap Day Version 1.1 Twitter banner used on the Nitrome account

Squids
Theme(s)	Spooky, etc.
First appearance	May 12, 2016
Movement	Moves back and forth on the ground or ceiling
Contact	Deadly from all angles
Behaviour	This enemy jumps to the opposite direction vertically and continues walking back and forth on the surface it is on. The blue squid jumps whenever the player crosses directly above or below it, whereas the red squid jumps whenever the player takes their initial jump.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A blue squid A red squid A jumping blue squid A jumping red squid A blue squid after dying A red squid after dying

Stone monster ✔
Theme(s)	Waterfall, etc.
First appearance	May 13, 2016
Movement	Horizontally intermittent on the ground
Contact	Deadly on the sides with spikes Solid on the non-spiked sides
Behaviour	Every few seconds, the stone monster moves towards the left or right by rotating every few seconds, thus constantly changing the position of the spikes and safe surfaces. Stone monsters will continue to rotate in a single direction until they hit a wall or a step, of which they will rotate and move in the opposite direction.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — No
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A stone monster on its side

Spring head
Theme(s)	Waterfall, Electricity, etc.
First appearance	May 13, 2016
Movement	Walks back and forth
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	This enemy allows the player to receive an upwards boost that is higher than when the player bounces off a normal enemy that can be jumped on top of. The enemy stops moving for a brief moment if bounced on, and the player retains their midair jump.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — No
Killable by powerup?	Yolk Helper — No Invincibility Star — No

Bird
Theme(s)	Leap Day: Waterfall, etc. Super Leap Day: Capital Highway
First appearance	Leap Day: May 13, 2016 Super Leap Day: August 6th, 2021
Movement	Flies horizontally
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	In Leap Day this enemy periodically pauses its trajectory to drop an egg, which kills the player on contact. If the egg hits a surface, it breaks and disappears. In Super Leap Day this enemy is black coloured with purple feet and acts similar to how it did in Leap Day. In some instances, a bird may be encountered perched on the edge of a platform. In this state, when the player nears it, the bird will fly off to a spot where it will fly normally. Birds may drop a power-up when killed.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery The bird laying an egg in Leap Day A bird after dying in Leap Day The egg dropped by the bird in Leap Day The bird in Super Leap Day flying Perched Laying an egg The egg A bird in the Super Leap Day Version 1.1 Twitter banner used on the Nitrome account

Bomb
Theme(s)	Waterfall, Clockwork, etc.
First appearance	May 13, 2016
Movement	Runs back and forth about as fast as the player
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	Bombs explode on contact, and kill the player immediately when touching the sides or the bottom. If the player jumps on top of the bomb or uses a powerup or VIP ability, the bomb will stop and blow up after a brief moment. This explosion creates a radius that can take up half the width of the level and can kill the player if they are caught in the blast.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A bomb right after being hit A bomb about to explode

Beast
Theme(s)	Forest, Totem, etc.
First appearance	May 14, 2016
Movement	Stationary on the ground
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	This enemy remains stationary when first encountered and is always seen against a wall. Once the player crosses a beast's path, it will curl up into a ball and roll towards the player. It will fall off the edges of platforms if it is situated on one until it reaches the ground, of which it will roll back and forth continuously unless it is killed or the player dies.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A beast once its roll is triggered A beast after dying

Pig
Theme(s)	Forest, Windy, etc.
First appearance	May 14, 2016
Movement	Runs back and forth
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	If the player approaches this enemy from behind, the enemy will turn around and run towards the player instead.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A pig turning around A pig after dying

Radish
Theme(s)	Forest, Clockwork, Windy etc.
First appearance	May 14, 2016
Movement	Moves back and forth on the ground at about the same speed as the player
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	N/A
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A radish after dying

Ants
Theme(s)	Magma, etc.
First appearance	May 15, 2016
Movement	Moves back and forth horizontally
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	Ants are encountered in groups of three. They run back and forth, turning the opposite direction at walls or the end of a platform.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery The ant once it has been killed

Jungle plant
Theme(s)	Forest, Windy
First appearance	May 16, 2016
Movement	Vertical, on walls
Contact	Deadly from side and bottom Can be bounced on from the top
Behaviour	This enemy moves up and down a single wall at a continuous speed. If the player crosses or is near the same level as the enemy's current position, it will pause and start firing balls of goo in a straight line away from itself. The enemy will keep firing until the player is out of its firing range, of which it will resume its normal movement pattern.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A jungle plant attacking The ball of goo shot by the jungle plant A dead jungle plant

Dragon
Theme(s)	Windy, Mud World, etc.
First appearance	May 16, 2016
Movement	Walks back and forth
Contact	Deadly from the sides and bottom Can be bounced on once from the top
Behaviour	When a dragon is jumped on, it will pause for a moment before turning red. During this state, the player can pass through the dragon without dying as if it were not present at all. Once the dragon is fully red, it will run back and forth on the platform and becomes harmful on all sides, including the top. Each powerup and VIP effect can force the enemy into this state, with the exception of Hard Boiled.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — Only stuns enemy
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery The dragon in its angry state The dragon in its dizzy state

Blob ✔
Theme(s)	Leap Day: Space, Windy, Electricity, etc. Super Leap Day: All
First appearance	Leap Day: May 18, 2016
Movement	Horizontal, on the ground
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	The blob small jumps periodically to get from one side to the other. It turns in place upon hitting a wall and will not bounce off.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A blob jumping A dead blob A blob on the cartridge for Leap Day shown on the loading screen A blob in Super Leap Day

Cactus Monster ✔
Theme(s)	Space, Desert, etc.
First appearance	May 18, 2016
Movement	Walks back and forth
Contact	Deadly from all angles
Behaviour	The Cactus Monster displays no other prominent characteristics in its behaviour besides walking. The height of its body can vary based on the part it is encountered in. While not present in Super Leap Day, in an image posted on Twitter to commemorate the background music for Capital Highway being added to the rhythm mobile game Beatstars, a Cactus Monster appears in the background.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A taller version of the Cactus Monster A giant version of the Cactus Monster A dead small Cactus Monster A Cactus Monster (left) in the Beatstars commemorative image

Bat
Theme(s)	Clockwork, etc.
First appearance	May 19, 2016
Movement	Flies horizontally
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	This enemy chases the player when they are both within the same enclosed area.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A dead bat A bat on the cartridge for Leap Day shown on the loading screen

Duck
Theme(s)	Forest, Windy, etc.
First appearance	May 24, 2016
Movement	Walks back and forth
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	Ducks pause their movement periodically to lay an egg. After a few seconds, the egg hatches into another duck, which is also capable of laying eggs. While not present in Super Leap Day, in an image posted on Twitter to commemorate the background music for Capital Highway being added to the rhythm mobile game Beatstars, a Duck appears in the background.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A duck laying an egg An egg laid by a duck A duck emerging from a hatched egg A dead duck A Duck (right) in the Beatstars commemorative image

Version 6.0 (Halloween)

Fish skeleton
Theme(s)	Spooky, Electricity
First appearance	October 31, 2016
Movement	Horizontally, in a single direction
Contact	Deadly from all angles
Behaviour	Fish skeletons float in a single direction across the screen, either on their own or in groups. They go through walls, and after they are completely out of the view of the level area, they reappear on the other side of the wall and at the same pace and direction.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A fish skeleton upon dying

Version 8.0 (Winter)

Woolly Trunky ✔
Theme(s)	Snowman
First appearance	December 23, 2016
Movement	Walks back and forth, turns at ledges and walls
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	Woolly Trunkies behave similarly to Trunky in that when the player crosses their path, they fire a tiny snowball that travels in a straight line directly away from them. The time at which it takes them to fire their snowball is a lot quicker than that of the trunky enemies.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A woolly trunky shooting its projectile A woolly trunky upon dying A woolly trunky's projectile

Big Woolly Trunky
Theme(s)	Snowman
First appearance	December 23, 2016
Movement	Walks back and forth, turns at ledges and walls
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	Big Woolly Trunkies fire a large snowball intermittently once they are fully visible on the player's screen. This large snowball travels on the ground and falls off ledges, and kills the player on contact. Once the snowball hits a wall, it is destroyed, and the Big Woolly Trunky will fire another one soon after.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A big woolly trunky in the middle of unloading a big snowball A big woolly trunky upon dying A big woolly trunky's projectile A big woolly trunky sneezing

Flying diamond
Theme(s)	Ice Temple
First appearance	December 24, 2016
Movement	Flies back and forth horizontally
Contact	Deadly from all angles
Behaviour	If the player passes directly underneath a flying diamond, it will pause in midair, then fall down after a second until it is wedged into the nearest platform. After a few seconds, it will slowly rise from the ground and continue its usual moving pattern.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — No Invincibility Star — Unknown
Gallery A flying diamond upon dying

Ice Charger ✔
Theme(s)	Ice Temple
First appearance	December 26, 2016
Movement	Walks back and forth, turns at walls and edges of platforms
Contact	Deadly from the sides and bottom Solid (can be walked on) from the top
Behaviour	When an Ice Charger spots the player, it will run across the platform it is on until it hits a wall or reaches the end of the platform if that platform is situated in the air. If an Ice Charger runs into the wall, it will get its icy spike stuck and pull itself loose from the wall, causing it to move away from the wall a considerable distance. If the Ice Charger is on a platform with no walls, it will simply stop its rampage once it reaches the end, then turn around and continue walking in the opposite direction.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — Only stuns enemy
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery An ice charger after charging towards a ledge An ice charger in its dizzy state

Horned monster ✔
Theme(s)	Ice Temple, Snowman
First appearance	December 27, 2016
Movement	Moves back and forth on the ground
Contact	Deadly from all angles Can be bounced on from the top (when vulnerable)
Behaviour	When the player is near a horned monster, it will stop walking for a brief moment to leap into the air, then land straight down horns-first on the ground. Once it is stuck in the ground, the player can jump on its exposed pink butt to kill it. If the player does not kill the horned monster, it will remain head first on the ground for a few seconds before reverting to its normal state and resuming its usual moving pattern.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A horned monster as it falls to the ground A horned monster upon dying

Version 9.0 (Valentine's Day)

Archer
Theme(s)	Castle
First appearance	February 14, 2017
Movement	Flies in the air horizontally and/or vertically, but can also be stationary
Contact	Deadly from the sides and bottom Can be bounced on from the top (except when arrow is aimed upwards)
Behaviour	When the player's character is in view of an archer, with no platforms or walls obstructing it, the archer pauses its movement to draw its bow and arrow. It will aim for a brief moment before shooting the arrow towards the player's current position at the time of shooting. This arrow can kill the player's character if it makes contact. If the player's character passes an obstacle that blocks an archer's view of the character while it is aiming, it will stop aiming and resume its movement. The arrow is only launched when the character remains in the archer's view parameter for a while and can be avoided if the player's character is moving and not turning at a wall.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery An archer upon dying An archer's projectile

Pink blob
Theme(s)	Castle
First appearance	February 14, 2017
Movement	Horizontal, on the ground
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	When the player's character is directly in line with a pink blob, the pink blob will make a high leap off the ground and attempt to stomp on the character.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A pink blob jumping A pink blob upon dying

Version 11 (First anniversary)

Candle soldier
Theme(s)	Fireworks
First appearance	May 11, 2017
Movement	Horizontally, on the ground Turns at the edges of platforms Can be stationary
Contact	Deadly from all angles (when flame is active) Can be bounced on from the top (when candle is out)
Behaviour	Candle soldiers march on the platforms they are on, moving incrementally by steps instead of in one smooth motion. The candle on their head will burn out then reignite every few seconds. Some candle soldiers are stationary, and are always situated in Yolk balloons. When their candle is lit, the balloon rises. When their candle goes out, the balloon falls to the ground.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A stationary candle soldier A dead candle soldier

Large jungle plant
Theme(s)	Forest
First appearance	May 12, 2017
Movement	Vertical, on walls
Contact	Deadly from all angles
Behaviour	When the player is in line with this enemy, it shoots out its tongue, which attaches to the surface directly across from it. The tongue itself can be walked on as a platform or jumped through, but the spikes at the end of it are deadly. The plant remains with its tongue out for a few seconds before retracting it back in and resuming its normal movement pattern.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — No
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A large jungle plant attacking

Mushroom soldier
Theme(s)	Waterfall
First appearance	May 13, 2017
Movement	Walks back and forth Turns at edges and walls
Contact	Deadly from all angles
Behaviour	This enemy floats upwards to a distance high enough that the player can run under it whenever the player jumps. The mushroom soldier remains floating for a brief moment before pointing its spear downwards and falling back to the ground, to which it will resume its usual walking pattern until the player jumps again.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Unknown Invincibility Star — Yes
Gallery A mushroom soldier preparing to attack A dead mushroom soldier

Fruit bat ✔
Theme(s)	Clockwork
First appearance	May 14, 2017
Movement	Flies horizontally
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	Fruit bats inhales any nearby fruit within their area, causing them to fatten in the process. Any fruit they consume goes towards the player if killed. If the player dies, any consumed fruit goes back to its normal position.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A slightly fattened fruit bat A very fattened fruit bat A fruit bat sucking up fruit A fatter fruit bat sucking up fruit A fruit bat upon dying

Grub
Theme(s)	Desert
First appearance	May 16, 2017
Movement	Horizontally, on ceilings and underneath floating platforms
Contact	Deadly from the sides and bottom Can be bounced on from the top (before explosion)
Behaviour	If the player passes directly underneath a grub, it will drop to the ground, putting it in a vulnerable state. After a few seconds, the grub explodes, causing several flies to burst from its body. These flies travel towards the player's general direction, and often move out of the level in a curving motion. If the player kills the grub before it can explode, it does not produce any flies.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A grub dangling from the ceiling, about to drop A grub about to explode with flies A fly that comes from a grub after exploding A grub upon dying

Homing missile
Theme(s)	Magma
First appearance	May 17, 2017
Movement	Any direction
Contact	Deadly from all angles
Behaviour	Homing missiles are fired from a missile launcher when the player draws near. The missile launchers themselves can be found embedded in a wall, ceiling or the ground of a platform, and can only fire one missile at a time. Upon launch, homing missiles will constantly move towards the player and die upon hitting a surface.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — No
Killable by powerup?	Yolk Helper — No Invincibility Star — Unknown

Version 12

This version added seven enemies that are exclusive to one theme.

Attack crab ✔
Theme(s)	Beach
First appearance	December 6, 2017
Movement	Back and forth on platforms/ground
Contact	Deadly from the sides Can be bounced on from the top Can be boosted upwards from the bottom
Behaviour	Attack crabs change direction based on the player's position, and periodically stop to shoot a small fish from their cannon.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — Only stuns enemy
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery The crab when it shoots a fish The crab when it is dizzy

Attack crab fish
Theme(s)	Beach
First appearance	December 6, 2017
Movement	Horizontally, along the ground
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	These fish are fired from the attack crab's cannon. They bounce along the ground, falling off the edges of platforms if there are any. The fish disappears after a few bounces.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes

Eels
Theme(s)	Beach
First appearance	December 6, 2017
Movement	Outwards and inwards from a fixed origin
Contact	Deadly from the mouth Solid from the body
Behaviour	Eels alternate between fully extending and retracting their body every three seconds in a straight horizontal or vertical line. When their bodies are fully extended, the player can walk or slide on them as though they were a platform or wall.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — No
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A set of four eels, with the horizontal ones latched onto a surface and the vertical ones hidden

Mr. Cloud ✔
Theme(s)	Windy
First appearance	December 7, 2017
Movement	Stationary unless in close proximity with the player Faster than player when dashing
Contact	Deadly from all angles
Behaviour	When the player enters an enclosed space with Mr. Cloud, he will briefly inhale and exhale, causing him to dash to the character's last known position at the time of exhaling. He then pauses for a brief moment before charging towards the player again.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery An angry Mr. Cloud, surrounded by lightning Mr. Cloud sneezing, indicating it will move towards the player Mr. Cloud upon dying

Cauldron fish
Theme(s)	Spooky
First appearance	December 8, 2017
Movement	Floats in any direction
Contact	Deadly from all angles
Behaviour	This enemy emerges from a cauldron when the player gets close enough to it. Once out, the cauldron fish will constantly move towards the player. It is able to pass through walls and any other obstacle, except for Yolk blocks, which causes it to die immediately.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A longer cauldron fish A cauldron fish after coming into contact with Yolk blocks A cauldron fish after dying via a VIP character The cauldron that the enemy comes out of

Tomahawk Totem ✔
Theme(s)	Totem
First appearance	December 10, 2017
Movement	Horizontally, on the ground
Contact	Solid from top and bottom Deadly from the sides
Behaviour	Tomahawk Totems move by jumping around on their platforms. Upon detecting the player, they will throw their axe towards them. The axe spins in the air and then flies back, towards the Tomahawk Totem. If the players is still around, they will try again.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — No
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A tomahawk totem without its projectile A tomahawk totem throwing its projectile A tomahawk totem's projectile

Fruit Mimics
Theme(s)	Tropical
First appearance	December 11, 2017
Movement	Stationary Moves in a line and immediately returns to its starting position
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	These enemies are designed to look like the six types of fruit that the player collects. They will move in a linear path a short distance before immediately returning to its starting position, during which it will immediately repeat its movement pattern or remain stationary for up to several seconds. One of the six fruit is randomly chosen to appear in parts where this enemy is present. If the player dies, a different type of fruit may appear upon respawning, but the placement and pattern always remains consistent.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes

Version 13

Lightbulbs
Theme(s)	Electricity
First appearance	April 13, 2018
Movement	Stationary when inactive Walks along the surface when active
Contact	Deadly from all angles when active Solid from all angles when inactive
Behaviour	These enemies will always appear in sets of two, one blue and one red. One will always be active, during which it will walk along a surface and its adjacent sides while being able to harm the player, and the other will be inactive, during which it will remain stationary and not harm the player. If the player jumps, both of the enemies will switch states.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — No Invincibility Star — Yes
Gallery A lightbulb in its inactive state

Version 14 (Second anniversary)

Toxic Sludge
Theme(s)	Toxic Sewer
First appearance	May 10, 2018
Movement	Makes a large leap forward with a long wait in between jumps
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	The enemy will will continually leap forward until they reach a wall, where they will change direction. If jumped on or contacted while the player is invincible, it will spawn two Mini Sludge enemies. Defeating the enemy with the Yolk Helper, Scrambled's shot, or Hard Boiled will cause it to not spawn two Mini Sludge enemies.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A toxic sludge jumping A toxic sludge dying when killed by Scrambled's shot or Hard Boiled

Mini Sludges
Theme(s)	Toxic Sewer
First appearance	May 10, 2018
Movement	Makes a moderate leap forward with a brief wait in between jumps
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	Two of these enemies will spawn from a Toxic Sludge once defeated, and they can also appear in a section on their own in sets of three. They will continually leap forward until they reach a wall, where they will change direction.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A mini sludge upon dying

Mud Crawler
Theme(s)	Mud World
First appearance	May 11, 2018
Movement	Stationary Quickly crawls along the surface if the player makes contact with that surface
Contact	Deadly from all angles
Behaviour	When undisturbed, the enemy remains in place with only its eyes sticking out. If the player makes contact with the surface the enemy is on, it will reveal its mouth and approach that spot at a fast speed. If the player continues to make contact with the surface while the enemy is moving, it will continue to move until it reaches the last spot the player has touched.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — No Invincibility Star — Yes
Gallery A mud crawler before being triggered An inactive mud crawler on a mud platform A mud crawler after dying

Version 15 (Third anniversary)

Swamp Snail
Theme(s)	Mud World
First appearance	May 11, 2019
Movement	Moves along the floor, wall, or ceiling slowly and changes direction on the same surface when it reaches a wall Stops in place when and after it shoots the spikes on its shell
Contact	Deadly from all angles with its spikes Solid from all angles without its spikes Can only be killed with the invincibility star when the enemy does not have its spikes
Behaviour	The enemy shoots the three spikes on its shell after several seconds of movement. One spike is shot in the direction opposite of the surface the enemy is moving on, and the other two are shot at a 45 degree angle adjacent to the first spike in opposing directions. After shooting its spikes, the enemy will remain stationary for a couple of seconds until they regenerate.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A swamp snail after shooting its spikes An unused frame of the swamp snail with no spikes A swamp snail upon dying

Small Mushroom
Theme(s)	Waterfall
First appearance	May 12, 2019
Movement	Stationary Makes a short leap forward if the player jumps
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	The enemy stays in place until the player jumps, in which case the enemy makes a short leap forward. It will change the direction it is facing when it nears a wall.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A small mushroom upon dying

Slot Block
Theme(s)	Casino World
First appearance	May 13, 2019
Movement	Quickly slams in the direction its arrow points to
Contact	Solid from all angles
Behaviour	The enemy's reel will spin until the player comes within close proximity of it. The reel will land on the direction that the player is closest to (unless that direction is up against a wall), and will cause the enemy to quickly slam in that direction shortly after.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — No
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A big, neon blue slot block A small, neon pink slot block

Ice Blob
Theme(s)	Ice Temple
First appearance	May 14, 2019
Movement	Leaps forward and slides after landing
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	The enemy waits a couple of seconds before jumping again. If up against a wall, it will instead change the direction it is facing.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery An ice blob upon dying

Trunky Copter
Theme(s)	Windy
First appearance	May 15, 2019
Movement	Flies in a fixed path that is dependent on the level layout Stops in place to drop acid when the player is directly under it
Contact	Deadly from all angles
Behaviour	The enemy drops acid when the player goes directly under it. The acid is deadly if touched, and lingers on the tile(s) it lands on for a few seconds.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A trunky copter while spitting acid A trunky copter upon dying A trunky copter's acid projectile dropping A trunky copter's acid projectile after hitting the ground

Version 16

Propeller fluff
Theme(s)	Windy
First appearance	January 17, 2020
Movement	Horizontal
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	Propeller fluff walks along the ground, turning when it hits a step or wall. If there is an open edge, it will fall straight downwards until it reaches another flat surface, of which it then continues walking. If under Mr. Blow, it will periodically rise up and hover in the air for a brief moment before coming back down.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A propeller fluff in the air A propeller fluff upon dying

Mr. Blow ✔
Theme(s)	Windy
First appearance	January 17, 2020
Movement	Horizontal
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	This enemy walks back and forth on a platform. Every few steps, he stops walking and activates his propellers, causing any propeller fluff above him to ascend a short distance until his propeller deactivates. After using his propellers, Mr. Blow becomes temporarily stunned and there is short delay before he starts walking again and repeating the pattern.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery Mr. Blow activating its windmill Mr. Blow dizzy after blowing Mr. Blow jumping Mr. Blow upon dying

Meteorite
Theme(s)	Space
First appearance	January 18, 2020
Movement	Diagonal
Contact	Deadly from the sides and bottom Can be bounced on from the top
Behaviour	Meteorites float diagonally around the space they are contained in, bouncing off any surface they hit. There are three forms to an meteorite based on their size and any of these forms can be encountered by the player. Bouncing on the top of an meteorite or shooting it will cause the meteorite to split into two parts of its smaller form, eg. hitting a large meteorite will cause it to split into two medium parts, and hitting a medium part will split into two small parts. Once in its small appearance, the meteorite can still be bounced on, but does not split.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — No
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A medium meteorite A small meteorite

Cuckoo clock ✔
Theme(s)	Clockwork
First appearance	January 19, 2020
Movement	Slowly horizontally while facing a fixed direction Stationary
Contact	Deadly from the top Solid from the sides and the bottom
Behaviour	Cuckoo clocks will send out a platform after several seconds. If the enemy was moving, this will cause it to remain stationary until its platform is retracted. The tip of the platform is deadly upon launching out, but the entire platform is safe from all angles once it has settled, and can be jumped through from the bottom. After several seconds, the cuckoo clock will retract the platform.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — No
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A cuckoo clock summoning its attack

Palmtree creature
Theme(s)	Tropical
First appearance	January 20, 2020
Movement	Horizontal
Contact	Solid from all angles
Behaviour	Palmtree creatures will move horizontally until the player starts sliding down on it or until the player jumps on it. When the player slides on the enemy, it will stop moving and drop the coconuts on both sides of it. The enemy will begin moving again once the coconuts have hit the ground. When the player jumps on the enemy, it will stop to extend its height by three units and continue moving shortly after. The height of the enemy can be extended until it reaches its maximum height, at which a flower will appear on top of the enemy and it can be walked on top of. After several seconds, the enemy will scale back down to its original height. Some palmtree creatures are at a fixed height and cannot be jumped on.
Killable by action?	Jumping (on top) — No Scrambled (shot) — No Hard Boiled — No
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A palmtree creature at its max height A palmtree creature after being jumped on once A palmtree creature dropping its coconuts A coconut projectile

Version 17 (Fourth anniversary)

Sewer Spitter ✔
Theme(s)	Leap Day: City Super Leap Day: Capital Highway
First appearance	Leap Day: May 12, 2020 Super Leap Day: August 11, 2021
Movement	Stationary
Contact	Deadly from the sides Can be bounced on from the top in Leap Day and below in Super Leap Day
Behaviour	Sewer Spitters appear in both games. In Leap Day will hide under a manhole which can be walked over. After a few seconds, the enemy will rise from its manhole and shoot a projectile diagonally upwards facing the direction of the player. The Sewer Spitter will then retreat back under its manhole, and the projectile will bounce on each surface it hits until it eventually dissipates. In Super Leap Day this enemy retains most of its behaviour from Leap Day, with a few changes. In this game it resides in underground pipes and can be killed if the player hits it from behind while travelling through a pipe. Another difference is that the projectile is shot straight in front of the enemy without regard for the player and dissipates upon hitting a wall. Yolk helpers will kill them. Sewer Spitters can be killed by their own projectile if it somehow hits them.
Killable by action?	Jumping (on top) — Yes Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — Yes Invincibility Star — Yes
Gallery A Sewer Spitter in its spitting animation (Leap Day) A Sewer Spitter after being defeated (Leap Day) The manhole a Sewer Spitter resides in (Leap Day) The projectile a Sewer Spitter shoots (Leap Day)

Cactus Tornado ✔
Theme(s)	Desert
First appearance	May 14, 2020
Movement	Horizontal
Contact	Deadly from the sides Can be bounced on from the top
Behaviour	Cactus Tornadoes will move horizontally on its platform until jumped on. The enemy will then stay in place and spawn a tall, narrow tornado above it. The tornado will exist for several seconds, and it will shoot the player upwards when the player comes in contact with it. Once the tornado subsides, the Cactus Tornado will begin walking again.
Killable by action?	Jumping (on top) — No Scrambled (shot) — Yes Hard Boiled — Yes
Killable by powerup?	Yolk Helper — No Invincibility Star — No
Gallery A Cactus Tornado after being jumped on The tornado that the Cactus Tornado summons

Super Leap Day

Spiders

A spider.

Spiders are enemies introduced in Super Leap Day. They appear as a spider with a red body, small purple legs, and wearing a tribal skull mask. This mask has black holes for eyes and also has fits the spider's jaws. Spiders move up and down bamboo until the player grabs on to the bamboo, whereupon they will become stationary and create a circle of electrcity around themselves that will kill the player on contact. They will cease doing this after a few seconds once the player leaves the bamboo.

A spider creating a circle of electricity

Chomp monsters

Chomp monster.

Chomp monsters are can be found in any theme and first appeared on the August 5, 2021 level. They appear as a black creature-like head with white eyes and two small conic feet. Their mouth has teeth and a tongue inside. These enemies walk horizontally and have two attacks: a running attack where they will run forward with their mouth open, which can be executed randomly or when the player is in front of them, and a swipe attack where they will try to bite the player character if it passes right in front of them. They can be killed by jumping on them and drop a silver coin. Yolk helpers will kill them.

A chomp monster running

Helmet beetles

A helmet beetle.

Helmet beetles are encountered in the Rainy Ruins theme and first appeared in the August 5, 2021 level. They have a spherical abdomen that has two small wings, four legs, and a head covered by a horn-shaped mask with two eyes on each side. Their abdomen is purple with a pink stripe down the middle and has a spike that only appears when they attack. These enemies can fly horizontally and climb up bamboo. Their main attack is to descend quickly from the top of bamboo with their stinger exposed, after which they may also quickly climb back up to the top.

Mimics

A mimic.

Mimics can be found in any theme and first appeared on the August 11, 2021 level. They appear as a normal treasure chests with teeth inside the chest. Mimics initially appear as treasure chests, but when jumped on will open and reveal they have teeth and then become active. Mimics will follow Yolk and move via short hops. When the player is not in front of them, they will suddenly notice, via a white exclamation mark, and turn around and continue following the player. They will release a power-up or 2-3 gold coins when initially hit and when killed. Yolk pets stun them instead of killing them.

Pylon mimics

A pylon mimic.

Pylon mimics are encountered in Capital Highway and appear as a red pylon with grey stubby feet and a gap between the red and white part of the cone that has two white eyes. Pylon mimics initially appear like the normal pylons that can be knocked around, but when the player is moderately nearby or is very close to one, they will jump up and reveal themselves to be pylon mimics and will dash in one direction. If they hit a wall, they will become stunned but will very soon recover and then dash in the opposite direction. When the player is some distance away, pylon mimics will stop dashing and just walk around. They cannot be killed, but can be killed by spider robots in their alert form.

Masked beasts

A masked beast.

Masked beasts are found in Rainy Ruins and have a round brown furry body, four small stubby legs, and wear a bone mask fashioned after a Trunky. These enemies walk horizontally and will throw a bone at the player when the player is near and is seen by a beast. This bone will bounce of walls and can be destroyed by being jumped on. The enemy can be killed by being jumped on.

Spider robots

A spider robot.

Spider robots are found in Capital Highway and first appeared on the August 21, 2021 level. Spider robots have two phases: a patrol phase and an alert phase. In their patrol phase, spider robots walk horizontally. If they detect that a nearby contestant is above or below them, spider robots will transition into their alert phase, where they will turn into a spinning top and bounce horizontally back and forth on their platform. They will transition back to their patrol phase after some time has passed or a contestant jumps on them.

While spinning in their alert form, bumped silver blocks will not kill them but instead bounce them upward. In their alert phase, spider robots can kill pylon mimics.

A spider robot spinning

Trivia

The early version of spring heads and spike heads.

• In the March 30th, 2015 preview for Leap Day, early versions of three enemies are seen:
  • Spring heads and spike heads have a slightly different colour pattern and design. The spike head also has a bigger spike and the spring head has a taller spring than with the final version.
  • The small blob was from an early idea where the regular sized blob when jumped on would split into tinier blobs. This feature is now seen in the Toxic Sewer levels.
• In Leap Day, some enemies can be seen in the audience at the start of each level.
• In Leap Day, certain enemies just fall off the screen when killed and do not have an unique death sprite. This is shared by the Mud monster, spring head, lightbulbs (active and inactive), Toxic Sludge, and mud crawler.