I recently reviewed "Arms", and although I rather panned it, one thing could just about single-handedly save the game: a "One Must Fall"-style tournament mode!

Arms' fighting action can't quite stand on its own when delivered via a standard arcade-style mode-- in the same way that a "Street Fighter II" or, heck, a "One Must Fall" can. But the game's entire premise seems tailor measured for replayable tournaments, filled with surprise cameos from other Nintendo characters-- and where the money earned can be used to improve the power and speed of the characters' equippable weaponry.

I can even envision Arms becoming "broken" in the same way that "One Must Fall" does, with maxed-out characters. And that would push the door ajar for almost sandbox-like characteristics, in what is already free movement open arena gameplay. Arms' existing mechanics almost couldn't be a better fit for an OMF-style "meta game"!