Minecraft wiki entry for Legend_of_the_Chambered, associated text: Monsters - They resemble goblins with green skin, messy dark green hair, red eyes, tusks, rust top, tan pants, and dark blue shoes. Their movement resembles dancing and they wander around aimlessly even when the player is near. If one bumps into the player, it raises its arms and deals 1-5 damage. When killed, they explode into giblets of blood and drop coins.
Bats - Creatures found in The Prison, Dungeon, and Crypt. They fly around aimlessly until they bump into you, dealing damage.
Eyes - Fully blue and fly around aimlessly on The Island and Frost Cave. Some may notice that eyes of ender from Minecraft are also somewhat fully blue, with the exception of the green iris.
Ogres - Green humanoid creatures that are found in The Crypt. They have a ranged attack of spitting acid at the player.
Ghosts - Ghosts are neutral creatures that attack only if provoked and are found in The Temple. Ghosts are the only monster that follows the player. The player has to defeat them by luring them to white boxes.
Slimes - During a Ludum Dare, Notch had planned on making another LoC game which he later released as a mobile game. One of the screenshots of this game showed purple blob-like creatures known as "slimes" in the game code. They had 3 HP and would wander around aimlessly unless a player was near, in which they would attack. Their appearance is very different from that of Minecraft slimes.