I don't know, there's so many.
Monsters in Silent Hill, Nidoqueen, Kangaskhan, Machoke and a bunch of other pokemon, Xenomorphs and Predators, Dobkeratops, Argonians and Orcs, Red Arremer, some of the females in Rare's games, Lizardman from Soul Calibur, Alef and Amon, some of the mosters in Doom, Zerg and Protoss, Ruto, Lizalfos, King of Red Lions and a ton of stuff from Zelda and many more. The kicker here is that all of the stuff that I listed here isn't from porn or fanart, It's all in-game.
I need help.