Brian Brinegar, Dan May, and John Groth are playing Super Mario Bros. 1, 2, and 3, Super Mario World, Super Mario 64, Super Mario Sunshine, and Super Mario Galaxy to raise money for Child's Play. You can join in the fun by chatting with them while watching the marathon live on Ustream. Of course you could donate to Child's Play for the kids and to show Brian, Dan, and John your support, but could you play all those Mario games for 55 hours straight?
Although I've never tried to play a marathon of games, I have donated to Child's Play before. I gave several GBA SPs and SMA4:SMB3 to three childrens' hospitals a few years ago. I think it's time to do it again. I just wish I could afford to send Nintendo Wiis this time. Makes me almost regret spending my money on a PS3 this week.
Source:
mariomarathon.com