Play Contra Advance: The Alien Wars EX emulator game online in the highest quality available. Contra Advance: The Alien Wars EX is a Gameboy Advance game that you can enjoy on Play Emulator. This GBA game is the US English version that works in all modern web browsers without downloading. Contra Advance: The Alien Wars EX is part of the Arcade Games, Action Games, and Platform Games you can play here. PlayEmulator has many online retro games available including related games like Contra, Contra 3: The Alien Wars, and Contra: Hard Corps.