Which Ultimate mode presents a rotating set of Spirit Battles?

Spirit Board is the Ultimate mode that presents a rotating set of Spirit Battles.

Spirit Board is built around short, themed challenges representing characters, creatures, objects, and ideas from Nintendo and other game franchises. Each Spirit Battle uses a playable fighter, stage, music track, item rule, or special effect to imitate the Spirit being represented. Winning can let players obtain that Spirit and add it to their collection.

The board changes over time rather than offering one fixed list. Battles appear, disappear, and return on a rotation, while special limited-time Spirit events can focus on a particular game or franchise. This makes Spirit Board different from World of Light, Ultimate's larger adventure mode, where Spirit Battles are arranged across an explorable map.

A common mix-up is choosing Smashdown, Tourney, or Classic Mode. Smashdown restricts players from reusing a fighter, Tourney creates an elimination bracket, and Classic Mode follows a character-specific sequence of fights. None of those modes is the rotating Spirit-Battle hub.