The Mortal Kombat Game for the Wii actually seems to demonstrate pretty well how the Wii can work with normal fighting games, like doing a circular motion to do Scorpion's Back-Flip, a down-up motion to do Sektor's Matrix Style Teleport through the ground move, and stuff like that. I'll have to try it before I can say I prefer it, though. One of the main problems I can see happening is not getting an attack in during the split second you need it.