Sewer Shark (Pack-In) for the Sega CD is a rail shooter video game where players take on the role of a rookie pilot navigating through a network of subterranean sewers. Set in a post-apocalyptic future, the objective is to reach Solar City by shooting mutants and obstacles while managing fuel levels and directions given by your co-pilot. The game is known for its full-motion video (FMV) cutscenes, which were innovative at the time of its release, lending to an immersive, cinematic experience typical of early 90s FMV-driven games.