The melee sucks with the wiimote, as you cant turn fast enough around. That and you have to shake it. If you love to melee, use a classic controller or a gamecube controller. You do lose the awesome aiming power of the wiimote though.
p.s. Biobooster gadget will make it so you don't die with one melee hit too
p.s. Biobooster gadget will make it so you don't die with one melee hit too