Riki is a school punk from Hanazono High School. He made his first video game appearance as the first stage boss in Renegade and later as the captain of the Hanazono dodge-ball team in Super Dodge Ball. However, in River City Ransom he teams up with Kunio when his girlfriend is kidnapped by another school gang. The two characters have been close ever since, with Riki usually appearing as the second player character in the Kunio games.
Riki has been localized as Jack in Renegade and Super Dodge Ball, Ryan in River City Ransom and Crusher in Crash 'n the Boys: Street Challenge