Shit, uh...
...welp, hadn't wanted to out myself, but Modbot messed with one of the game names in a way that's significant and Stump isn't around to do anything about it. So! There are only two copies of Giana Sisters. One of the "three" is actually the upcoming DLC, "Rise of the Owlverlord". If you win that but don't own the base game, well...sorry.
Sorry the list is a totally incomprehensible mess, too. I put it in alphabetical order because that way it might actually be possible to look for the game(s) you wanted and enter for them, but it appears that order isn't preserved. I can post the full list if somebody wants.
And yes, all of it is real. Nothing is Bad Rats. I might be "honorless" but I'm not an asshole.
Holy crap, man. This is an amazing giveaway. You are seriously too kind.