the same kind of ... . .thing the moonman is. its has a psychic affinity (like how the moonman has a water affinity)
'cause its psychic type once you release it, its stuck in ur head.
they're like demons i guess?? they take on the form of their vessel until they get a real body. the moonman doesnt want a body b/c it'd loose its cool magic but bob really hates bein just a figment of people's imaginations so it REALLY wants to be '''real'''