Zombie Revenge Game System: Sega Dreamcast Cheat Category: Hint Game Company: Unknown Game Category: Unknown Hint, Cheat, Walkthrough:   Zombie Revenge ============== HIDDEN ROOM: Once you have reached the end level (The Sewer), kill everything in the first area. Get to the next area with the zombie standing on the ledge. There is a boarded up door at this location. Punch the door and press B to enter a secret room that contains weapons, such as a dual hand gun. Note: A zombie is in the room, off to the right side.