I adopted "Initium" from the pound as a zapper and after less than 24 hours he has been quite a few different colors/species! However, my last zap left him an Experiment

I am unsure if I want to keep him like this or not, so I was looking for some input? I intend for his character to be dark/evil, but I am not positive this is the best pet for what I want to do.

I'll be biased and say that I'd probably keep him because I like the 76166 :P I'd think in the sense that he could have an overlay, where he looked more dark/evil or however you want him to look.
This is very true! I don't suppose you would want to adopt him? Just figured I would ask since you said you like the 76166 :b

I would definitely consider it if I had any pet slots left haha c: