Too many to list for me. I actually play the games I own. Except for a vast majority of my PS2 JRPGs. A lot of them are timesinks and I dont like them as much as I used to. I've beaten nearly every GBA game I own, except a few. About the same for my PS1 games.
Most of the games i've played, although there is a few that i just can't seem to finish, mainly on the SMS. Last few: Master System Putt and Putter Enduro Racer Sonic (again) Megadrive Death and Return of Superman Aero the Acro-Bat 2 PS2 Time Crisis 3 TimeSplitters Future Perfect
the title of this thread is fantastic! i've beaten the minority of my games. pretty much if the game is 8 hours long, i've beaten it.
the last time I actually completed a game was back in the NES/SNES days (mario1/2/3/world and so on) Nowadays I get bored very fast, if it takes too long or I get stuck it;s time for the next game
I was being stupid. =( I think in my lifetime I have beaten around 400 games. Maybe higher, maybe lower. I own 368 last time I checked and I used to rent nearly every NES, Genesis, N64 and PS1 game there was when I was a kid.