Making yourself the tori would require some sort of motion sensor hardware and then the software that responds to the data that is being recording from the hardware on your body. Also, this would either take away the turnframe concept behind Toribash and would support a more so, live, real-time fighting game rather than "Toribash" and there would be a disadvantage to those that couldn't do flips, etc. Meaning people that can't kick, etc wouldn't be able to kick ingame. Or if there was a turnframe still to the game, it would record your movement and do "moves" according to your movement within a specific amount of time.
But seriously, you guys are so selfish with the "make me tori" concept, what about all the little children with a missing arm or legs? Or the kids in wheel chairs? How would they play toribash if toribash became a move to play? They would be at a huge disadvantage when it comes to playing the game.