The Legend of Zelda: Ocarina of Time Glitches

Hidden Arwing
Recently, a group of people discovered a Gameshark code that lets the player replace the Kokiri boy lifting the rock in Kokiri Village with any actor in the game. Among the actors available, an Arwing from the Star Fox video games was found. The Arwing is fully programmed and has an AI. It attacks using lasers and, when destroyed, will spiral to the ground and blow up.

See a video of the Arwing here.