I know that atarimania.com lists Blasteroids as having been released in America, by Tengen, but no other video game databases, like gamefaqs.com and mobygames.com, list an American release for this game.

Last month, I got a 2-port Atari 5200. When I play any games, the screen freezes after about 10 minutes of game play. I've cleaned one of the cartridges, and it's still happening. I opened up the system, and everything looks clean inside. Any advice would be welcome at this point.