Super Smash Bros. Ultimate is a fighting game for up to eight players in which characters from Nintendo games and other third-party franchises must try to knock each other out of an arena. Each player has a percentage meter, which raises when they take damage, making them easier to launch in the air and out of the arena.

In IHSEN matches are played in a 1v1 and 2v2 format. Players each have 3 lives per game and matches are played best of 3. Students earn points based on their position on the team The team with the most points at the end wins.