Jigsaws - Pathenogen (1981)(Thorn EMI)[k-file] ROM Download can be obtained free for Atari 800 on EmuGames.net only. Play emulator game in English for the USA region. Jigsaws Pathenogen is a Atari 800 ROM that you can download to your computer or play online within your browser. You can also download roms such as Ravenskull and Demo 3 that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.