During the early stages of development, two significantly different Ocarina of Timeexpansions were planned for the 64DD. One, titled Ura Zelda, would include alternate and more difficult dungeons (such as the Unicorn Fountain) and new enemies, while the other, Zelda Gaiden, would include a different overworld and an entirely new adventure. While Zelda Gaiden would eventually evolve into The Legend of Zelda: Majora's Mask, Ura Zelda was never released on the Nintendo 64 or the 64DD (Disc Drive) as a standalone game.

Ura Zelda was actually a patch for Ocarina of Time. The 64DD version was designed so that the original Ocarina of Time cartridge could be plugged into the main Nintendo 64 console while the Ura Zelda expansion disk would be plugged into the 64DD that sat underneath the console. Upon the insertion of the Ura Zelda expansion disk, the Ocarina of Time title screen would change slightly, adding a "DISK" icon to the right of the logo. The size of this patch was supposedly about 32-64 megabytes, and due to the smaller maximum size of Nintendo 64 cartridges, the game could not otherwise be released on a cartridge. But, it's a new age. With new technology and expanding storage, The Nintendo Switch and the 3DS could surely handle the game.