The Fighters Pass is a free permit for Super Smash Bros. Ultimate that allows players to buy a bundle of DLC containing 5 characters, 5 stages, and music tracks associated with each individual DLC fighter. The price for this bundle is estimated to be $24.99, however, the price may change in the future.
Without this pass, players can buy individual sets containing 1 fighter, 1 stage, and various music tracks for $5.99. Once the game releases, the contents of the bundle will be revealed. This pass, active after the game's release, expires in February 2020.