Alright I've unlocked everything except that question mark guy next to 9-volt. I've beaten the green monkey dude, or at least gotten to 25 on him, which is how many times you need to beat the others, and he's still not unlocked. Can someone please tell me how to unlock him? I know who he is and everything, with only 3 seconds and all, I just don't know how to get him. PLEASE HELP!!!!