Mutant earth

!!!Read please!!! A random ahh idea, you and your friend are stranded on this weird earth with a pink sky where two animals are combined into killing machines. And you choose which ones! But all humans are mixed with flies, no changing that pls. For best enjoyment try to put a detailed description of the horrors you and Luna find, and you respawn! (you choose everything about yourself), the fly people speak in grunts and buzzes BTW.