The Zelda Dungeon Marathon begins today which means there’ll be plenty of Zelda-themed fun on Twitch for the next week. There’ll be competitive races, fun gimmick events, trivia, puzzles, and all kinds of on-screen fun for those who tune in (and all for a good cause too). I’m crossing the Atlantic to attend the event for the third time, and I’m so excited! The only thing better than watching the ZD team do their gaming thing is to actually be…