C button

The C button can refer to the four directional buttons on the Nintendo 64 controller or a button on the back of the Wii's Nunchuk auxiliary controller.

Nintendo 64 controller

N64 controller C buttons

The C buttons are four small, yellow buttons found on the top right area of a Nintendo 64 controller. All four buttons are used for jumping when fighting, and are used to change colors on the character selection screen.

GameCube controller

GC controller C-Stick

The Nintendo GameCube controller's equivalent of the N64's C buttons is the C-Stick, which is used by default in Super Smash Bros. Melee and if playing on a GC controller in Super Smash Bros. Brawl to activate uncharged smash attacks.

Nunchuk (Wii)

Nunchuk C button

The Nunchuk controller has a C button on its back, which is by default used in Brawl to jump in the Wii remote + Nunchuk control scheme.