Scrapyard Dog is a platformer video game released for the Atari 7800 console in 1990. The player controls Louie, the protagonist, whose mission is to rescue his dog, Scraps, from the villain Mr. Big. Players navigate through junkyards, sewers, and forests, avoiding enemies and obstacles while collecting cans and throwing them at threats. The game is known for its challenging gameplay and was one of the notable titles for the Atari 7800, showcasing the console's capabilities beyond the Atari 2600's standards.