Positron (1983)(Partis-Soft)[b] ROM Download can be obtained free for Acorn Electron on EmuGames.net only. Play emulator game in English for the USA region. Positron is a Acorn Electron ROM that you can download to your computer or play online within your browser. You can also download roms such as Mario Tank & Sub and Unsolved The Hyper Science Adventure that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.