Crumbling blocks are hazards and interactive objects the Frost Bite series. There are three types, regular crumbling blocks, big crumbling blocks, and ice crumbling blocks
Standard crumbling blocks
These are normal, small, crumbling blocks.
Crumbling blocks appear in Frost Bite 1 & 2. When the Eskimo lands onto one of these rocks, they promptly begin to crumble beneath the Eskimo's feet, causing them to fall, usually into other dangerous hazards such as spikes.
Crumbling blocks respawn after a few seconds, giving the player another chance to climb up that certain part of the mountain should they have not succeeded the first time. A larger, more dangerous variation called big crumbling blocks exist in Frost Bite 2.
Big crumbling blocks
Big crumbling blocks are a variation of standard crumbling blocks.
Once it has crumbled completely, it will promptly respawn. If a big crumbling block respawns when the Eskimo is in its position, the Eskimo will completely lose one Eskimo face, no matter how much energy the Eskimo has. The ice block is another dangerous cousin of the big crumbling blocks.
Ice crumbling blocks
Ice crumbling blocks are the third variation of crumbling blocks.
Ice blocks are hazards from Frost Bite 2. They are a variation of big crumbling rocks, which are a variation of crumbling rocks. Although being a variation, they act differently. They usually block the path of the Eskimo, forcing the player to smash their way through with their grappling hook. The blocks of ice respawn in the place they were a few seconds after the player has smashed them. If an ice block respawns while the player is standing in the position where they smashed it, the player will become frozen and lose one of their lives.
Many of them appear in the first level segment on the last level of Frost Bite 2. Because of the high number of blocks, it makes this level very very hard. What is also good about the large amount of blocks is that a glitch can be exploited.
This glitch only happens rarely. The player has to die while on their last life; hopefully, the player will be respawned, this time without any lives left, but with full health. The player can now die as many times as they want and the 'game over' screen will never come up.