The Mutant Virus: Crisis in a Computer World is a sci-fi action game published by American Softworks for the NES. You play as a virus that has been released inside a computer network, and you must navigate through the digital world to eliminate harmful programs and restore order. The gameplay involves top-down exploration, combat, and puzzle-solving, with a focus on using different types of attacks and abilities. A unique feature is the "infection" system – you can infect other programs to convert them to your side, and they will help you fight against enemy programs. The levels are themed around computer components like hard drives, processors, and memory banks, each with unique enemies and obstacles. The game features a health bar and a password system to save progress. A trivia: the game was developed by American Softworks and is a rare title, making it a collector's item. The graphics are colorful and detailed, with a digital, neon aesthetic that represents the computer world, with glitching effects and pixelated environments. The music is electronic and atmospheric, composed by the American Softworks sound team, with a futuristic feel. Critics praised the unique concept but found the controls clunky and the gameplay repetitive. It supports one player. The final boss is a powerful antivirus program that requires strategic use of your infection abilities. The Mutant Virus is a unique and quirky game for sci-fi fans, offering a different take on the action genre.