I Count 4 buttons compared to 7 on the cube

A,B,Z1,Z2
A,B,X,Y,Z,L,R

I think a,b will be do the same as A,B even if they don't the point is mute as you would have to move your hand just to reach them. If you want to count the start button then add it to both controllers. Either way I see it as coming up short 4 buttons compared to the competition.