Almost three years ago, Ed Fries—a Microsoft executive instrumental in acquiring Bungie and making Halo the definitive Xbox series—created Halo 2600, a flash game demake that imagined the game on an old Atari VCS. Now, AtariAge.com is putting the game's ROM on a proper cartridge, with period box and label art and an instruction manual.
via Kotaku http://kotaku.com/play-halos-atari-2600-port-with-this-cartridge-now-o-464790227