Contra Advance - The Alien Wars EX ROM Download can be obtained free for Gameboy Advance on EmuGames.net only. Play Alien emulator game in English for the USA region. Contra Advance The Alien Wars EX is a GBA ROM that you can download to your computer or play online within your browser. You can also download roms such as 0886 Mario Golf World Tour-EUR.3DS-CONTRAST and Contra Force that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.