This version is an exact copy of the Atari 5200 edition, which was not the best version they could have used for the Atari XEGS. The main flaw is the fact that you only have one missile base, compared to three in the arcade. Considering the XE includes a keyboard, this oversight is not easy to forgive. The graphics barely do the job, although the gameplay is rock solid. I think including Missile Command with the XE game system was largely a cop-out from a company running low on innovative new titles.