Arwing

The Arwing is the title of the spacecraft flown by Fox McCloud in the Star Fox series. The Arwing's appearance in Zelda is as a unused enemy in, which can only be fought by modifying the games data either by hacking or using a cheat device. When Link enters an area with an Arwing, a small cutscene will play showing the ship appearing, and the Arwing will proceed to fly around the area and hone in on Link. The Arwing attacks similarly to other flying enemies, but instead of dive bombing at Link, the Arwing fires its Twin Lasers from the Star Fox games.

The Arwing was used to test the flight patterns of Volvagia. It is not known why the Arwing was left in the game, as it can be found in all versions of the game including the Nintendo GameCube and Virtual Console counterparts. It wasn't until that they removed the Arwing.