It's from an Asteroids game I lost that I got my screen name. Me and someone else who played it at the bowling alley where the game was, used the same 3 letter initials for high scores. So we played against each other, winner keeps initials loser picks something else. I lost* so I closed my eyes and randomily picked letters and up came QAM and 25 years later I am still using that name (Now systems require you to use 4 characters minimum so I later tacked on the 1).
* I technically won, But in Asteroids when you go over 99,990 it resets back to 0 and I had 99,970 and just before I commited suicide into a 20pt Asteroid to get a perfect 99,990 the ^@^# little ship shot it out from under me and I crashed into the resulting 50 point asteroid and went over.
Oh my God! You are the legendary QAM??
Too strange...
And Defender was the game that I played endlessly.
After that, Stargate Defender.
I still have a working Atari 5200 with a ton of games, and the new, vastly improved, keypad/joysticks.