Sector Alpha (1983)(Spectravideo)[o2] ROM Download can be obtained free for ColecoVision on EmuGames.net only. Play emulator game in English for the USA region. Sector Alpha is a ColecoVision ROM that you can download to your computer or play online within your browser. You can also download roms such as Street Fighter Alpha 2 and Street Fighter Alpha 3 that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.