It's a great idea, I'd play it. The type of game winning Alimonster's poll (while I'm typing this) is a "Side-scrolly jump-and-run" game. Your idea would fit nicely into that category. So when that poll finishes (I'll ask Alimonster about it), I think it's likely 'the team' will do something very similar to your idea.

There's the beginnings of a team in this post, hope you'll be part of it.