Fighters are the playable characters that compete in ARMS. ARMS launched with ten fighters. As Nintendo stated before the game launched, five fighters were released as free updates after ARMS was released, bringing the total to 15. The last fighter, Dr. Coyle, was released on 2017-12-21.
|Playable fighters in ARMS|
Each fighter has their own home stage that matches their theme and motifs, and most have a set of 3 signature ARMS (the exception being Springtron). Each fighter also has their own special abilities and properties to distinguish them from each other.
Max Brass became the first playable fighter released after the game's launch in Version 2.0.0, making him the eleventh fighter. A twelfth fighter, Lola Pop, was released on 2017-09-13 in Version 3.0.0 and the thirteenth fighter, Misango, was released on 2017-11-15 in Version 4.0.0. On 2017-11-30, Springtron was made playable in Version 4.1.0, being unplayable until that point.
- Springtron is the only fighter to not receive three signature ARMS, as he shares the same ARMS as Spring Man, based on how many the player has unlocked. Therefore, unlocking ARMS for Spring Man also unlocks the same ARMS for Springtron.
- Nintendo of America. "ARMS Direct 5.17.2017", retrieved 2017-05-17.