Slime cube

are hostile mobs that kill by absorbed anything living and kill them on the inside.

they are taller and fatter than the player and stronger.

Appearance
they are gelatinous green blobs with the zombie face on it.

Trivia
even if they are fat they can go through doors

they maybe based on the gelatinous cube from dungeons and dragons

they are seen attacking and consuming kikis

if you go inside the cubes you see a torso and a rectangle-like head

Gallery