The Y button refers to the grey, kidney-shaped button on the right side of the GameCube controller, the small button on the right side of the Classic Controller, Wii U Pro Controller, Wii U GamePad, and Nintendo 3DS (varies in color on 3DS, matches the color of the Wii Classic Controller, Wii U GamePad and Wii U Pro Controller), or the dark gray button on the right Joy-Con and Nintendo Switch Pro Controller. The color of the Y button varies on the 3DS and matches the color of the shell on the Classic Controller, Wii U GamePad, and the Wii U Pro Controller.

Overview

Due to the Nintendo 64 controller not having a Y button, there is no function for it in the original Super Smash Bros. However, its Wii Virtual Console re-release made it compatible with controllers that have a Y button, mapping it to the C buttons (used for jumping). In Super Smash Bros. Melee, Super Smash Bros. Brawl, Super Smash Bros. 4, and Super Smash Bros. Ultimate, the Y button is primarily used for jumping, a function it typically shares with the X button. When using the right Joy-Con by itself held horizontally, the Y button will become the right button, acting like an X button and performing jumps, while the Y button's typical functionalities are given to the B button.

In Brawl, Smash 4, and Ultimate, the Y button can be customized in the controls menu to perform other functions. Nintendo Switch system version 10.0.0 introduced the ability to map the functionality of any button to any other button from the console options menu, further diversifying how the Y button can be used in Ultimate.

Gallery

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  The GameCube controller's Y button.
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  The Classic Controller's Y button.
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  The Nintendo 3DS' Y button.
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  The Wii U GamePad's Y button.
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  The Y button on a Joy-Con and Pro Controller

Controllers and buttons
Nintendo 64 controller
Nintendo GameCube controller
Wii Remote (and Nunchuk)
Classic Controller	LR
Nintendo 3DS
Wii U GamePad / Wii U Pro Controller	LR
Joy-Con / Joy-Con 2	/ GL button GR button
Nintendo Switch Pro Controller / Nintendo Switch 2 Pro Controller	LR / GL button GR button
Third-party controllers	Hori Mini Pad · Arcade controller · Keyboard
Other	Controls · Smash Controller · Controller modification

• Controller buttons
• Game controls