The Legend of Zelda: Ocarina of Time is perhaps the most well-known game in the Zelda franchise. It was the first game in the franchise to be in 3D, and it revolutionized the idea of 3D adventure games.
The plot follows a young boy named Link, who is set on a quest to stop the evil Ganondorf from obtaining the Triforce to achieve godlike power. This eventually leads Link into traveling 7 years into the future where Ganondorf has already taken over the kingdom. With the help of his fairy companion Navi, Link must do what he can to bring down Ganondorf from power.
This run by Swordless Link aims to complete the game as fast as possible without performing any glitches. However, this run does make use of many exploits. For a more detailed explanation of what is considered a glitch vs. an exploit, you can check out the SRC page that explains what is allowed and what is disallowed in this category.