Alien Sidestep (Japan, USA) ROM Download can be obtained free for Commodore VIC20 on EmuGames.net only. Play Alien emulator game in English for the USA region. Alien Sidestep is a Commodore VIC20 ROM that you can download to your computer or play online within your browser. You can also download roms such as Ben 10 Alien Force and Contra III The Alien Wars that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.