Found this over at Make:Blog
Ever like a game so much you made another one to keep playing? Zelda Classic is a tribute to (what we think is) the greatest video game of all time: Nintendo's The Legend of Zelda. It has been developed into an exact replica of the NES version that we all know and love. Beyond that, Zelda Classic allows the development of new quests that can use either the traditional graphics or enhanced graphics, as well as new enemies, items, and challenges. You can download user created quests (and here's how to load them). Runs great on the little oQo!
WOO HOO! I absolutely LOVE this game... this and Metroid are by far, my all time favorite video games. I still have the maps to both of them (mostly) memorized from the original Nintendo Power magazines that were produced back in the 80's!
Head on over to ZeldaClassic.com and get your old school on.