there was a controversy in which a bunch of rather questionable mcpig discord messages were leaked (surprisingly enough, it had nothing to do with grooming), and although the messages were 4 years ago and mcpig has admitted that he isn't proud of them, he never exactly apologized. i think the...
Pretty much all of the versions are the same, but WiiWare's soundtrack is probably the most hated, and not for bad reasons at all. I don't think it's that bad, but you're going to find the final boss theme really underwhelming. I like freeware the best, but I'm biased because that's what I use...