if they do it like the judgement wheel from this old ps2 series it work great.
basic set-up a wheel shows after you select an attack, or after the apponent selects an attack. a single clock like hand rotates and depending on the moves accuracy you have defferent sized "pie" slices" and you attempt to click it on one to determin if your attack hits or misses, or perhaps if you deffend against the attack. --- cant decide which movie is the worst movie; dragon ball z evolution, m.nights last air bender, or twilight????? hmmm