Contra Advance - The Alien Wars EX ROM download is available to play for Gameboy Advance. This Alien game is the US English version at EmulatorGames.net exclusively. Download Contra Advance - The Alien Wars EX ROM and use it with an emulator. Play online GBA game on desktop PC, mobile, and tablets in maximum quality. If you enjoy this free ROM on Emulator Games then you will also like similar titles Contra and Contra III - The Alien Wars.