Um Jammer Lammy was released for the PlayStation in 1999 as a spin-off of PaRappa the Rapper, created by Masaya Matsuura and Rodney Greenblat. Players control Lammy through surreal stages, playing guitar to escape increasingly absurd situations. The game developed a cult following for its distinctive art style, catchy soundtrack, and much higher difficulty than PaRappa. Clips and riffs later circulated on forums, gaming boards, and soundboards, where the short musical bursts became shorthand for nostalgic rhythm game chaos among fans of late 1990s PlayStation games.