Gitaroo-Man is a video game for the Sony PlayStation 2, published by Koei. The player character is U-1 ("Yuuichi": a common Japanese boys' name), a young boy who is frequently ridiculed by classmates and passed over by Little Pico, the girl of his dreams. The story proper begins when Puma, a dog with the capability to speak, teaches U-1 to play the guitar--simultaneously teaching the controls of the game to the player--and subsequently revealing to him that he is the last legendary hero of Planet Gitaroo, a title which sets him up as a target by many varied individuals.

Despite a number of positive reviews, the North American and European versions of Gitaroo-Man were produced in very low quantites by Koei and, as a result, have become somewhat rare, and is regarded as a cult video game.