The world's happiest fly

Mario marathons are nothing new, but this weekend sees an oft-overlooked entry in the franchise take centre stage — and all for charity.

The Bro-Off puts Mario Bros. front and centre, with four world class players battling simultaneously to set a new world record.

It all kicks off tomorrow at 12 midday Eastern (9am Pacific, 5pm UK, 6pm CET) and will be streamed online through Gaming Worldwide. The event will raise money for the American Cancer Society, with gaming items and memorabilia on offer for particularly generous donors.