Super Mario 64 is the sort of game you could play forever...and by "you," I mean a dude named Siglemic.
Siglemic is trying for the word record at completing Mario 64. Not just finishing but getting every single coin in every single level. He's playign 12 hours a day all week long, streaming his games online. The current best score is one hour, forty-seven minutes. Siglemic is using every trick in Mario's arsenal -- jumping instead of walking, bouncing around like Ninja Gaiden, memorizing every last square inch of gamespace. He's regularly hittign times well under 2 hours, but is still a minute away from the all-time best score.
Will he make it? How close will he get? And can he teach us that backwards long-jump technique? Keep watching.