Quadrangle (19xx)(-)[a][QUADRAN Start] ROM Download can be obtained free for BBC Micro on EmuGames.net only. Play emulator game in English for the USA region. Quadrangle is a BBC ROM that you can download to your computer or play online within your browser. You can also download roms such as SD_Gundam_Generations__Babironia_Kenkoku_Senki_ _ and Ultima III Exodus that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.