As Tomo, save a game store beset with hard times by making "mashes." Pick two games genres from a list of six then mash them together for a different experience in SuperMash. Choose from Platformer, Stealth, Action-Adventure, Shoot 'Em Up, Metrovania, and JRPG, mixing any two different ones or choosing the same genre twice.
Within each mash, complete certain tasks - like collecting a certain amount of money in a timeframe - while also dealing with "glitches", intentionally designed by the developers to alter the experience. Unlock and use in-game dev cards to customize mashes. Save mashes and then share them with your friends.