Well, I was bored and decided to make a list of all games I've beaten so far in my life, this time I looked at the PS1, PS2 and PS3 games. I will add games from other platforms and other games I think of later.

Playstation 1:
Demoltion Racer, Final Fantasy IX, Gran Turismo, Hydro Thunder, Medal of Honor Underground, Resident Evil: Director's Cut, Sled Storm, Spyro the Dragon, Tekken 3.

Playstation 2:
Big Mutha Truckers, Black, Blade II, Brothers in Arms: Road to Hill 30, Bully, Call of Duty 2, Call of Duty 3, Def Jam: Fight for NY, Disney's Tarzan Untamed, Dragon Quest VIII, Final Fantasy X, Final Fantasy X-2, Grand Theft Auto III, Grand Theft Auto Vice City, Grand Theft Auto San Andreas, Gun, I-Ninja, Jak and Daxter, Need for Speed Carbon, Need for Speed Underground, Need for Speed Underground 2, Onimusha: Warlords, Onimusha: Dawn of Dreams, Prince of Persia: Sands of Time, Resident Evil 4, Spider-Man 2, Splashdown, The Getaway, The Godfather, Tomb Raider: Legend, True Crime: Streets of LA.

Playstation 3:
Call of Duty 4, Def Jam: Icon, Formula One: Championship Edition, NBA Street Homecourt, Resistance: Fall of Man, The Darkness, Uncharted: Drake's Fortune.