The Legend of Zelda: Ocarina of Time was Nintendo's first entry into 3D for the Zelda series.
On January 19, 2021 an unsuspecting F-Zero X development cartridge from NoA Product Testing was released by Forest of Illusion. The cart is decidedly more notable for containing a substantial amount of an Ocarina of Time build from late 1997.
Various assets suggest that this build was either the playable demo seen at SpaceWorld '97 or was built very soon after the event.
This image shows a very early version of Kakariko village.