WMG / Sonic's Schoolhouse

This Sonic is a benevolent Eldritch Abomination of sorts

He doesn't look like any of the other (presumably normal) anthropomorphic animals in the game, has an unnaturally high-pitched voice despite being a old enough to own an entire schoolhouse, can teleport between rooms and trying to exit his schoolhouse can crash your PC by making it have a Blue Screen of Death. Fortunately, he only wants to teach you stuff.