Metal Slug (Series) Alternatives

Metal Slug is described as 'With a long history tracing back to early stand-up arcade systems and NEO GEO console, Metal Slug (series) is the definitive bullet hell platformer. It's a traditional, 2D sidescroller that's dead easy to learn and play, but with difficulty levels that practically' and is a Action Game in the games category. There are more than 10 games similar to Metal Slug for a variety of platforms, including Windows, Steam, Xbox, Playstation and Android apps. The best Metal Slug alternative is Space Shooter X, which is both free and Open Source. Other Metal Slug like games are Touhou Project, Cuphead, Alien Hominid HD and Super Star Wars.