Answer in the comments. First person to post all the answers correctly wins some MvC3 swag.
1) [X-Men vs Street Fighter] How do you do a Spinning Pile Driver with Rogue?
2) [Marvel Super Heroes vs Street Fighter] What is the question posed at the very beginning of the intro?
3) [Marvel vs Capcom] What is said when you add a coin to the arcade machine?
4) [MvC2] Name one character with a triple-jump.
5) [MvC3] What is the name of Super Skrull's multiple-punches move?