I would say I have beaten about 99% of the games I own. Most all games are piss easy so its not that hard. The 1% I don't have done are the games I am currently playing and games that I have started to not give a flying about.

Star Ocean 2(PSX)(sucks), Silent Hill(PSX)(Scares the trout outta me) are about the only games I have stopped giving a damn about and never beat.

I am working through Gun Valkrye, Valkrye Profile, Otogi, Jet Set Radio Future, Ghost Recon: Island Thunder. These are the few games I have not beaten and am working through.

In my percentage I did not include my NES games because those games were made to never be beaten due to insane levels of difficulty(Little Nemo the Dream Master) or that they acutually never end(duck hunt).

Oh and I don't go for every unlockable in the game. It just is a waste of damn time. I use to do it but now that I play more games and have more things to do...there is just no time. I also lost interest in it(I think its one of those things that comes with age).