SEGA has previously said that it plans to revisit some of its existing IPs that haven’t had a game in a while. Today it emerged that the Japanese company has trademarked some of its classic video game series. Games under the trademark are Altered Beast, Eternal Champions, Jet Set Radio and Kid Chameleon. SEGA previously revealed that it was working on Jet Set Radio alongside new Crazy Taxi, Golden Axe, Shinobi and Streets of Rage.