Last one I remember was last summer, I played through FF8 in 3 days. I think the total time was 40 hours plus. There was a break here and there, but I basically played through it in 3 days.
8 hours (food, restroom, and outside breaks) If a game pisses me off enough, I will have to take a walk outside and cool down.
Ive had prolly a hundredl 10-12 hours marathons over the years. My most recent is 13 hours on runescape trying to get my woodcutting up to 75 and doing the shilo village quest.lol..shut it!!! I love that game!
I spent about 36 hours playtesting a game i was working on just before it went gold, does that count? Other than that, there were a few 3 day lan parties back in college... EDIT: I played through all of Halo 2 a few days before it launched... something like 10 hours...