Metal Slug X is a classic side-scrolling run-and-gun game developed by SNK and originally released for the Neo Geo arcade in 1999. Known for its fast-paced combat, varied weapon systems, and distinctive art style, the game puts players in the role of elite soldiers behind enemy lines executing high-risk missions to rescue hostages and destroy hostile installations. Players can choose from a wide array of weapons including machine guns, rocket launchers, and grenades, and must adapt their loadouts to handle different enemies and environments. Levels are diverse, ranging from jungles and deserts to ruined cityscapes, each filled with challenges and surprises. With two-player cooperative play, Metal Slug X delivers the kind of teamwork-fueled thrills that make it a lasting classic.