I may be a huge KH/ TS fan, but I'd never play 48 hours straight of any game. From what I've read, it can be harmful and potentially fatal. (Not too long ago, I read about a freakin' 18-hour (an almost day-long) long boss fight on FFXI and I said f--- that. There's no way I'd play a game for more than seven hours, let alone 18 and beyond. I might not be a FF fan, but even if I was, I doubt I would care to fight a boss that took more than three hours to beat. (Originally.. because I didn't know too much at the time and ignored the message box, it took me about two hours to fight through KH2's final boss battle. However, since then, I can now beat it in under eighteen minutes.)
Oh, and really don't feel like watching people playing a game so much that they end up passing out btw..