When Niki.chr, a villain variant of Monika from DDLC, loses control of the dark energy inside her soul, she becomes Dark Niki, a force of void destruction with no sense of morality or the things she cares about. She is nearly unstoppable in this form, being able to kick around people as strong as Yukand, and can decimate a battlefield in seconds. If you encounter Dark Niki, run, for there is no way to stop her.