Subspace, in excess of 30 hours
Street Fighter 2, no doubt. I would go to the arcade when it opened and stay there all day playing, only taking breaks to urinate on occasion and maybe a bag of chips for lunch.
Then when it came out for SNES, I would play at my buddies place all night until I actually fell asleep with the controller in my hand.
When I say Street Fighter 2 is my favourite game of all time, I am not jiving.
KT

I bet I could kick your ass
(well, the 1996-97 SF2-playing version of myself could)
Final Fantasy II (IV) on the SNES!
I must have finished this game over 30 times.
I remember my first playthrough took about 35 hours...my last playthough took a littleo ver 10 hours. I was cruising in this game so fast and was exploring everything...
I can't see myself doing this now, i'm getting lazier by the years and sitting in front of a game for more than 1 hour I get the need to do something else or play something else or do 34536 things at the same time...lol
Natural Selection 2. Spent 117 hours on it and still haven't had enough. That game rocks!
I also played Civilization V for 78 hours, average 4-7 hours a day. Dumb AI, got bored of it eventually.
Don't post often, but I had to share that Ultima Online was definitely my choice for long gaming sessions. Once played for basically a whole weekend.
I think the thing that made this most epic was that it was in the infancy of dial-up in my area, so none of the ISPs really new what they were doing. It was extremely common to lose my connection and white knuckle it during the dialing/squealing - desperately hoping to get back in the game. Most often, I'd come back to a corpse.
Good times...
I don't know man, I was the best white guy in town. :hmm:
KT
then there was lineage 2 gained 60 pounds in 6 months. ~__~