Nintendo Switch Pro Controller - SmashWiki, the Super Smash Bros. wiki

The Nintendo Switch Pro Controller is a controller for use with the Nintendo Switch console. Unlike the Wii U Pro Controller, the Nintendo Switch Pro Controller has near field communication functionality, allowing the use of amiibo with games. The layout of the controls resembles that of the GameCube

Controls - Super Smash Bros. Ultimate Guide - IGN

B button - SmashWiki, the Super Smash Bros. wiki

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Controls - SmashWiki, the Super Smash Bros. wiki

Nintendo Switch Pro Controller, Nintendo

Controls - SmashWiki, the Super Smash Bros. wiki

Nintendo Switch - Super Mario Wiki, the Mario encyclopedia

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Super Smash Bros. for Nintendo 3DS / Wii U - Animal Crossing Wiki

C button - SmashWiki, the Super Smash Bros. wiki

Mario Bros. (game) - Super Mario Wiki, the Mario encyclopedia