Activision Decathlon, The ROM download is available to play for Atari 5200 SuperSystem. This game is the US English version at EmulatorGames.net exclusively. Download Activision Decathlon, The ROM and use it with an emulator. Play online Atari 5200 game on desktop PC, mobile, and tablets in maximum quality. If you enjoy this free ROM on Emulator Games then you will also like similar titles River Raid (1982) (Activision) and Pitfall! (1982) (Activision).