8-Bit Cthulhu

The final boss is always pretty intimidating, but nothing quite compares to a one-on-one with the Great Old One himself. He’s got max hit points and can kill you in two hits, even if you’re over level 60! Actually, you shouldn’t even bother to try and fight him, he’s as big as an island and older than the universe itself. Even just wearing this shirt might drive you insane.