The Legend of Zelda: Ocarina of Time is known, I Imagine, to someone who wants to be called a gamer. You may also know The Legend of Zelda: A Link to the Past. What is the relationship between these two, apart from their name? They merged together, thanks to the work of some fans.
A team of nine people decided to make the classic 'Ocarina of Time' in 2D and in the style of 'A Link to the Past' (the game will be for PC only). In fact, it is not finished yet, since the creation of 'Ocarina of Time 2D' is still under construction. The game is in demo mode, which can be downloaded from the project page. Whether it will finished or cease to exist is unknown, since Nintendo is not happy about such actions.
If you do not want to play a game on such graphics, here's how you can run Ocarina of Time on HD graphics.