Zero4 Champ (ゼロヨンチャンプ) is a series of racing games created by at Media Rings, which started in 1991 with the PC Engine title Zero4 Champ. The series would transfer to the Kaminaga-founded WorkJam with the PlayStation 2 title Zero4 Champ Series: Drift Champ, codeveloped by Tamsoft and published by Hudson Soft, along with the mobile phone Go! Zero4 Champ developed by Profire, both of which were released in late 2002.