While the original Halo: Combat Evolved may look as ancient as they come to some of today’s gamers, the former VP of Microsoft’s game publishing division was curious to how Halo would fare in the retro days of Atari 2600. The result? Halo: 2600! Halo 2600 began as a way for Ed to get his hands dirty in some 2600 code work, but the resulting experience transformed into a complete retro classic showcased at the Classic Gaming Expo. To solidify the retro experience, Halo 2600 even sports a cartridge modeled in true 2600 fashion. Below, Ed discusses his experience making Halo 2600, and a bug that seems to fit into the Halo experience:

“It’s around this time that I discovered the existence of what I call “Magic Land”. I was working on a bug with the boss encounter and accidentally found myself completely outside the 64 room map. I was wandering through memory that was never intended to be interpreted as part of the map but the code was doing the best it could to interpret what was being thrown at it. Strange, misshapen monsters attacked me in even stranger ways as I wandered through this bizarre land that I had unintentionally created. I left a bug or two in the final game to allow others to find and explore this strange landscape as I did.”

While waiting for Halo: Reach to hit stores, get your Master Chief fix here.