Why don't we make a game like Super Smash Bros. but with Scirra characters, items, and levels? Just some ideas I'm throwing out.
I'm thinking of taking the best of the series and improving on it - for example, there could be an Adventure Mode where you go through levels before fighting your next opponent, only the levels are skippable.
And there could be coins or stars or whatever that you win after every fight and after beating the final boss(s) to unlock new modes, minigames, characters, skins, levels, items, menu backgrounds, music, etc.
I'm not sure how this would get started, though. Just ideas.