If I were game designer, I'd make a game where you can move up and down the plane..

I'd give the characters something like 3-buttons for pulling off moves or something..

And a jump-button..

And a block-button..

But you don't really have to block because you can just press DOWN to walk down the plane and avoid the attack..

And I'll throw in a lot of neat special FX and multi-player option or upto 16 players at a time..

And consumable power-ups, health, weapons etc..

So it'll basically look like a beat em up..

Because it actually is going to be a beat em up anyway, but no one will be able to tell because I'll just put it under the genre FIGHTING GAME.