Updates
From ARMS Institute, the ARMS Wiki
Downloadable content, usually abbreviated as DLC, is additional content available to download after a game's launch. DLC was first confirmed for ARMS at a Nintendo Treehouse stream at E3 2017 on 2017-06-15. Downloadable content for the game includes new playable fighters and features.
Fighters
Modes
Spectator Mode will be available DLC in June 2017 after ARMS's release. It was announced at a Nintendo Treehouse stream at E3 2017 on 2017-06-15.