So... OoT is being completely remade, this is old news (like a year old) but not many people know about it.
here is the developer's website,
here is the developer's youtube.
You will be able to download it on an n64 flash cart and play it directly on an n64 console, or you can just play the ROM.
In the file select you will be able to choose between normal OoT or OoT URA.
Changes from original OoT:
* A brand new plot
* A new protagonist
* A new fairy partner named Raze, with a new personality and improved dialogue
* Completely new dungeons
* A new overworld
* New NPCs, enemies and bosses
* New minigames
* Changes to the OoT game engine where appropriate, to add new functionality
* Restored BETA content
* New attacks
Check the website out, it's really cool and exciting.
here is a
REALLY interesting video watch about it.