Slime creatures are blue, have one yellow eye, and look like they are made of a relatable liquid. Slime creatures are shot out of round cannons which consists of a blue cannon piece. A light blue ring on the cannons surrounds a pink circle, and on the pink circle being a yellow rain drop.
Slime creatures first appear on level six. If rockitty touches one, a heart will be lost. They are seen being shot out of cannons, and unlike most enemies, they will explode into blue goo if they hit another object other than rockitty. Slime creatures have one eye, like most enemies in the Rockitty universe.