About a month ago i beat MGS 1 in 8 hours, in one long sitting...
It was weird, because i started playing...then ended it, and it just feels really weird to know you completed a whole game.
Anyway, i have done -
MGS 1 : 5 times
MGS 2 : 1 time (although i just brought it from Ebay for £11, so i will do it some more before MGS 3 comes out)