The Legend of Elda: Mockerina of Time is a very rare knockoff of The Legend of Zelda: Ocarina of Time made for Windows and the Tandy VIS.
Let's just say copies can sell for about $500,000 on eBay.
There is basicly no plot. The game has simple versions of dungeons in Legend of Zelda: Ocarina of time, however there is no story.
Despite being a Legend of Zelda knockoff, it uses turn based combat similar to Pokemon or other JRPGs. The combat system is is riddled with bugs and glitches, however, making the game annoying to play.