Wii U Pro Controller
The Wii U Pro controller features two analog sticks, a D-pad, A, B, X and Y buttons, the L and R shoulder buttons, and two Z buttons (labeled ZL and ZR) next to the L and R buttons, respectively. Alongside the shoulder buttons are clickable analog sticks. In the center are + (Start), - (Select), Home, and Power buttons. This controller is one of several compatible with Super Smash Bros. for Wii U.
The Wii U Pro Controller has the highest latency out of all usable Smash 4 controllers barring the Nintendo 3DS, experiencing lows of 75.36ms (4.5 frames) and 93.7ms (5.5 frames). This makes it up to a frame slower than a Wii Remote or GameCube controller in some situations.
Standard Controls (Super Smash Bros. for Wii U)