Zalgo Pie is a creepy, corrupted version of Pinkie Pie created by Zalgo.

Her appearance is that of Pinkie Pie but red, darker red, black and red eyes, and a 666 symbol (only in some images..) And She is Zalgo's slave.

Zalgo Pie is mostly known in some images for hating Pinkie Pie, as she has tried to kill her before.