The B button is either the large, green button on the Nintendo 64 controller, the small, red button on the Nintendo GameCube controller, the rectangular trigger button on the back of the Wii remote, the clear button towards the bottom right of the Classic Controller, or the varyingly-colored circular button on the Wii U GamePad, Wii U Pro Controller and Nintendo 3DS. It is used to activate special moves in Super Smash Bros., Super Smash Bros Melee, and Super Smash Bros. 4. In Super Smash Bros. Brawl, controls and control settings can be changed. By default, though, when using the Nunchuk, Classic, or GameCube control schemes, the B button activates special moves as well. With the Wii Remote alone though, the 1 Button acts as its B button, performing special moves, whereas the actual B button is used to shield the character with default controls.