One of the many rubber based enemies from the video game latex_dungeon made by zxc, these creatures wanders the last two maps of the desert ruins, right before the area boss.

Unlike most of the other common monsters of the game, this species lack a weaker, not completely corrupted version of itself, which implies that the transformation is most probably permanent,
although the hardest enemy in the game is in fact a partially transformed anthropomorpic fox, whose state is explained in a note that explains how the complete transformation into a purple demon would results in the lost of the victim's human soul, something that she clearly lacked even before

Additionally, the player can find, hidden in the desert ruins as well, two elves npcs that look very similiar to untransformed version of the purple demons, sharing both the same pose and hood. Should the player deliver the journal that one of them reqiested to find, it will result in the elf being turned into a purple demon herself, thus confirming the creature's origin.

In the original version of the game, made in rpg maker vxa, these demons lacked the cloak and boots and were eventually cut during development, only to be eventually re-introduced much later as the game was being remade in rpg maker mv, only this time with a magenta skin color, lips featuring two open mouth and re-colored green, just like the lips and part of the wings, tail and member.