Unused content (SSBU)/Spirit Battles

There are 214 Spirit Battles that exist in the files of Super Smash Bros. Ultimate, but go unused.

Unavailable battles
At least 193 spirits have battles that cannot be accessed in the game. Most spirits that cannot be battled contain the default placeholder data for their battles, consisting of on  with other data being similarly default values. However, all of these battles have data such as battle power specified based on the spirit's rank, and some of these battles were developed past their initial placeholder state, though not to completion.

All of these battles:
 * Have only one opponent.
 * Have stage hazards on.
 * Do not use any special behavior for their stages (e.g. forcing a specific chamber on Kalos Pokémon League), except for Resetti, which uses the same setting that all battles on Smashville use (specifics unknown).
 * Have the normal victory condition of defeating the enemy (within the time limit, if applicable).
 * Do not specify a music track, simply using the default of "random".

Spirits updated after original release
Only Poppi α, Ribbon Girl and Ninjara became Spirit Battles following 's and 's releases with some differences besides placeholder values is that Ninjara's spirit battle being a Shield types in development but became a Grab type in the final build while Poppi α's spirit battle was a Grab type in development but became a Shield type in the final build. Coincidentally, Ribbon Girl's is set on a Battlefield form of a stage, Poppi α's is set on Midgar with hazards off rendering it as a Battlefield-type stage, and all three spirits have the same battle power in the final build.

Dummy battles
There are at least 21 battles in the game which are not assigned to any spirit or fighter battle, which were likely used for testing battle effects during development. One of these battles is "default", while the other twenty are "dummy".

All of these battles:
 * Have only one opponent.
 * Have stage hazards on, except for "Dummy 2".
 * Do not use any special behavior for their stages.
 * Have the normal victory condition, except for "Dummy 1", which is set to have the condition of also protecting a CPU ally.
 * Do not specify a music track, except for:
 * "Dummy 1", which uses Ground Theme - Super Mario Bros. (Brawl).
 * "Dummy 2", which uses Underwater Theme - Super Mario Bros.
 * "Dummy 5", which uses Fortress Boss - Super Mario Bros. 3.