He has released a ton of good ones, some better than others but I don't think I have heard a Mutant Ape that I haven't liked. One of my favorites was 2009's Erotic Yorkshire, it covers a lot of different ground from some droning minimal noise with small movements to straight up heavy Power Electronics with the great Jamie Gillis placed through-out. I really liked Mutant Children as well, thick and heavy, and you can't go wrong with the Grunt split. Check out another one of his projects called Murder Book as well, really good, as is Sump if you are into the stomping, raw as fuck Black Metal thing.