Mechanic: Spawns infront of the door. Waits a few seconds before going in front of the player's locker. Forcing the player into doing an minigame where they have to do 2 math questions right while under the time limit of 12 seconds. If they fail. They die. If they win. Then the entity despawns. Letting the player free. Also if the entity catchs the player before they get to an locker they also die.
The entity design and sound are unrelated to the mechanic and are ether an baseplate or an placeholder for the real entity's design.