- What programming language are you going to use?- What 3d engine fits with that language?- Cloth physics are quite hard to program, and you should probably put gameplay at a higher priority then graphics.- I think you just need 1 controller, but with a nunchuk plugin, that'll basicly give you 2 wiimote accelero meters.- I'd sugest to first make the feet being controlled by the joystick of a nunchuk, and maybe later with a wiifit, since i've not yet seen any libraries for the wiifit.