MGS1
Tenchu 2
Ace Combat Zero
Brave Fencer Musashi
No time for "Dilly-Dallying" or "Shilly-Shallying."
Props go to the one and only, Proxy, for the signature.
Oh man yeah.
As far as games I've gone through and completed the most, probably the Metal Gear games. I remember I beat them all 3 times shortly after 3 came out then ran through them a few more times before MGS4 released. I've lost track.
Now I moved back home with a ridiculously huge TV and MGS3 and 4 are staring at me vying for which one I'll play first. I opened up MGS3 and looked through the manual, man that gave me chills.
Does Pokemon count? It's basically the same exact game with a couple of minor changes and different cast. I've played all the colors and some of the shapes!
Other than that, probably Chrono Trigger.
Fallout 2 and Baldur's Gate 2. Those games have occupied a LOT of my time over the years.
Forgot to mention:
SSX Tricky
Shadow of the Colossus
Tetris
Can’t think of anything else at the moment