FEZ

So i guess the Dev being a plantain does have some really negative effect on the game selling.

Yeah, you might think that. You'd be wrong though. He gets into headlines and such a ridiculous amount which lead to people talking about Fez an awful lot more than they would have otherwise.

I might not like the guy, but I have no doubt that he carefully planned his online persona to get lots of free press and I have no doubts it has significantly increased the number of copies of FEZ that have been sold.