Wii Balance Board

The Wii Balance Board (, Wii Board) is an accessory and, within the series, a character.

Origin
In real life, it functions as a that is compatible with a select number of games for the Wii and Wii U, similarly to how R.O.B. functions for the Nintendo Entertainment System and the Super Scope for the Super Nintendo Entertainment System. To play using it, the player must stand on it and shift their legs - Wii Fit in particular uses this to detect a player's weight and support minigames made to help with exercise. In the Wii Fit series, the Wii Balance Board also functions as a character, complete with voice and personality. As a character, he helps encourage players to do their best.

Although designed for use with Wii Fit, the Balance Board saw use in a variety of third party titles in a variety of genres, most of which were aimed at the same casual market as Wii Fit, and/or were connected to some kind of licensed IP, some based around fitness such as The Biggest Loser or Gold's Gym, and some without such theming, such as Garfield and I'm a Celebrity... Get Me Out of Here!. Some titles not designed for the Balance Board, such as Tetris Party and Scrabble Interactive: 2009 Edition also provided Balance Board support as an alternate novelty control scheme. Nintendo only used the Balance Board sparingly for their own releases, with only the Wii Fit series, Wii Music,, and Rock N' Roll Climber using the peripheral. The Balance Board could also be used on the Wii U, but only two games were made to support it.

In Super Smash Bros. 4
The Wii Balance Board appears as part of 's on-screen appearance. Wii Fit Trainer balances on the Wii Balance Board before stepping off, after which the Wii Balance Board floats into the air, waves goodbye to Wii Fit Trainer and then disappears in a puff of smoke.

As a background character
The Wii Balance Board also appears as a background character on Wii Fit Studio. He will occasionally wave with his right "hand" as combatants come near him. He will bow and walk off-stage once the stage platforms leave. When the platforms return, he will walk back on-stage and again bow toward the screen before he resumes cheering on the combatants.

As a stage element
One through five inanimate Wii Balance Boards will act as platforms for the Wii Fit Studio stage as well. They will often move off-stage for short periods of time, then return with a different layout so as to change up battle tactics with each shift.

In Super Smash Bros. Ultimate
The Wii Balance Board reprises its role in Smash 4 both as part of the on screen appearance of the and as a background character on Wii Fit Studio.

Spirit
The Wii Balance Board appears as a master spirit, which runs a Dojo that teaches the Lightweight Style. The following is a list of quotes that the Wii Balance Board can say when a player visits his dojo.
 * "Who's ready to get fit? Wii are!"
 * "Rest assured--the data doesn't lie."
 * "Who would you like me to train?"
 * "Let's give it our all!"
 * "What'll you do?"
 * "End your training?"
 * "Good hustle. We'll continue later."
 * "With [number]00SP, I can teach the Lightweight Style right away."
 * "Congratulations! Your spirit reached its goal!"
 * "Please come back sometime."