Nintendo posted a video showcasing some of the characters for their upcoming game ARMS. It looks like each character has their own specific strengths such as Ninjara being able to warp and Master Mummy healing himself while guarding.
Nintendo also released a video showing off some of the different weapons players can use in the game. Weapons like the boomerang will be able to reach around objects and the revolver lets off three punches at once but can be deflected. Players can use different combination of weapons on each arm for a variety of different gameplay options.
ARMS is a fighting game that features the joy-cons and their motion controls. There is currently no release date other than Spring 2017 for the Nintendo Switch.