Imp

A variety of creature which appeared in John's house after it was sent to an alternate dimension by the Cruxite Apple. Act 2's initial cutscene depicting John's house immediately after the activation of said apple suggests that many such creatures have appeared around the house, although the variety of Imps which are present remains to be seen. This creature and others like it may be responsible for John's dad's disappearance, and are almost certainly the source of the oil-like sludge strewn throughout John's house, as the greater part of the creature is pitch-black, and drips visibly during Strife with John. Their name is probable a reference to oil shale.

Currently, this creature's potential for danger remains unknown -- it has yet to make any offensive move against John aside from initiating Strife with him. Beyond this, it seems content to simply taunt John with his stolen present and attempt to harm it in a manner which thus far has only succeeded in coating it with a small amount of the oily sludge which composes the Imp's physical form. This behavior might be attributed to the harlequin-esque motif of its clothing -- it seems to have somehow inherited the physical and behavioral attributes of John's dad's main decorative choice, and as such may be related to the Kernelsprite on some level.

It seems safe to assume that other (possibly more dangerous) varieties of Imp will present themselves at later points, presumably for the most part themed after the prevailing aesthetic of the host house (i.e. Harlequins for John, Wizards for Rose, etc.)