Merry Christmas from lostlevels.org: An unreleased beta of The Legend of Zelda! Videos showing it off: 1, 2, 3. Cutting Room Floor has documented the differences from the release version.
Doctor Sparkle is in the midst of a noble endeavor: he's playing every single Nintendo Entertainment System, Famicom and Famicom Disk System game in chronological order. Not only that, he's recording himself doing it for hour-long episodes of gameplay and genuinely enlightened and erudite commentary. You can start with his recent re-recording of Episode 1 (Donkey Kong through Hogan's Alley) or the latest, Episode 30 (Battle of Olympus through Fuuun Shaolin Kyo - Ankoku no Maou). Want to find his review of your (least) favorite game? Here's a convenient episode guide (WIP). Doctor Sparkle isn't done yet, though. He's also chronicling the Sega Master System and PC Engine/TurboGrafx 16 as well in his parallel projects Chronsega and Chronturbo, respectively.