Star Trigon is an Arcade game that is played with only one button. I have never played the game, but the screenshots and videos I have seen look fun.

I decided to try my luck at a gameplay engine similar to the one used in Star Trigon. This is the result: http://games4noah.sitesled.com/trainwrecks/demo%20(ST).exe

Youtube:

http://www.youtube.com/watch?v=SHQO4ZYMP4w - Take 1
http://www.youtube.com/watch?v=6W1zRPQDk8Q - Take 2
http://www.youtube.com/watch?v=_LqG8E94VQg - Take 3

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http://www.youtube.com/watch?v=V-ZqvhFN_rA - Youtube video of Star Trigon