Poison Jam are a group of horror movie fanatics who rival the GG's in both Jet Grind Radio and Jet Set Radio Future. They are depicted as gore movie buffs, and are all rather large. In Jet Grind Radio they are only a group of three, however in Jet Set Radio Future they are led by a female leader, the former head of Rapid 99.The leader's switch to becoming a Poison Jam leader has resulted in a bitter rivalry between the two. Poison Jam mostly sticks around the Kogane-Cho area and rarely ventures out of that particular area. In both games Poison Jam is known as a nuisance.