What about Pac-Man? Does he count as a SBG?
Hitman is one of my favorites- don't think I've missed a game yet. The most recent one is my way of blowing off stress, coupled with GTA San Andreas. Good stuff.There was that game for x-box a while back too, based after Vin Diesal's character in Pitch Black...can't remember the name. Also a great game.
Have you guys tried Mercenaries? It's like San Andreas in a war zone ... one of my favourite games for blowing off steam because you get to blow lots of stuff up and can literally take down whole buildings. Very cool. There's even a few baldies.