Alien Soldier

Alien Soldier is a side-scrolling run and gun video game in which the player controls the main character, Epsilon-Eagle, through 25 stages and 31 bosses. The gameplay has been compared heavily to Gunstar Heroes; however, putting a much larger emphasis on boss fights, and lacking any 2-player option. The stages are notably short, populated with weak enemies to serve as downtime between the more difficult boss battles. (wikipedia.org)