Games with over the shoulder shooting where you can't switch the shoulder it's... over. Especiall in Mercs 2. Oh, and games where you use L2, R2, to aim and shoot, and can't change. I like shooting with my trigger finger, damnit!. Shooting with R2 even gets people killed, as I often put my controller on the ground for cutscenes, when the game starts, I pick up the controller and the button gets pushed slightly and kills a teammate with a headshot.