Roo

Roo is a secret playable character in Streets of Rage 3 and Streets of Rage 4.

Appearance
Roo is an adult kangaroo with red boxing gloves on his hands, a broken chained collar around his neck, blue boxing shorts around his waist and his feet are covered in athlete tape, wrapping them up.

History
Roo was once a trained animal working for the Syndicate under Bruce, the clown animal tamer. During one fateful day he and Bruce encountered Axel Stone, Blaze Fielding, Eddie "Skate" Hunter and Dr. Gilbert Zan and engaged them in battle. The vigilantes defeated Bruce, freeing Roo and allowing him to escape. He later returned as a secret ally.

In Streets of Rage 4, Roo is first encountered working in Barbon's bar as a bartender. He cleans a glass at the end of the level after Axel Stone and his friends demolish the bar.

Thanks to the Mr. X's Nightmare DLC however, Roo is readded as a playable character using his Streets of Rage 3 sprite work, and summons Bruce(and Bruce clones if he has multiple specials) as his special attack. Bruce will stay with Roo, effectively adding an additional fighter to the team for as long as he isn't KO'd.

Trivia

 * Despite being a secret character in Streets of Rage 3, Roo was front and center of the American box art alongside Axel Stone, Blaze Fielding and Dr. Gilbert Zan. Strangely Skate, the other main character is missing from the boxart.
 * Roo has a Streets of 4 render and redesign which he uses for his portrait. However, it's the Streets of Rage 3 pixel art sprite that is used as a combatant.
 * Roo also has a cameo in the art gallery where an abstract painting of Roo can be seen laying on it's side.