In this strange music rhythm game, you play Gitaroo-Man as you go against various music themed villains. The game puts a new twist on music games as you not only have to time button presses but you have to move the analog stick around in a radar circle to follow a line that passes through the center point. You can play up to 4 players using the multitap and choose from a variety of characters, songs, and locales. Along with local Ad-Hoc multiplayer and additional difficulty options, the game adds a new Duet mode, in which two players control Gitaroo Man and Kirah in two exclusive new stages, "Metal Header" and "Toda Pasión". These levels may also be played alone if the handheld's Ad-Hoc is activated.