Slime (Minecraft)

Slimes are a rare hostile mob. Found in swamps, or underground caves, they will commonly spawn in the world type Superflat, this is due to the default Superflat world being only three blocks above the bedrock layer. As of 1.5 slimes spawn rate is determined by the movement of the moon. Slimes have four different sizes, and are one of two that have this quality, the other being magma cubes. Their sizes are large, medium, small and tiny, the tiny size being harmless to the player.