Unfortunately, There simply aren't many lightgun games for the PS2. Other than the titles Caliburn mentioned, you have Time Crisis: Crisis Zone (worst in the series IMO), Dino Stalker, and Endgame. I kind of liked Endgame as it was a complete Time Crisis ripoff. Dino Stalker was okay but it's different since you move around with the D-Pad on the Guncon 2. From what I understand, Starsky and Hutch also has some parts where you use the Guncon as well.