Wonder Dog is a platform game developed by JVC and released for the Sega CD console in 1992. The game follows the story of Johnny, a boy who is transported to a magical world by a talking dog named Wonder Dog. Johnny is tasked by the dog to save the kingdom of Screamania from the evil Queen Vorka. The game takes place across various themed levels, such as a haunted castle, an underwater cave, and a toy factory. Throughout the game, the player controls Johnny, who has the ability to transform into different forms with special abilities. For example, he can transform into a flying car, a submarine, or a robot with extendable arms. The goal of the game is to collect keys to open doors to the next level, defeat bosses in each level, and collect items to increase Johnny's health and time. The game also features an animated soundtrack and colorful graphics typical of games from the era. Overall, Wonder Dog is a fun and exciting game that offers a unique and challenging gameplay experience for fans of platform games.