Slap Happy Rhythm Busters is a fighting game set in a trendy Shibuya style with cel-shaded graphics. The game features a unique rhythm element where players must hit buttons in time with the music to land attacks, and better timing will lead to more damage.
The game includes various modes such as Arcade mode, Versus mode, training mode, and practice mode for the Beat attacks. Players can choose from 11 characters initially available, plus a further 10 unlockable through completing the Arcade mode.