Keaton
Majora's Mask
Keatons are yellow foxes with 3 tails that appears in Majora's Mask. To get them to appear, you need Keaton's Mask and to cut some Moving Grass for example the grass in North Clocktown. You must have Keaton's Mask on when you cut the grass! The Keaton will then appear and ask you some questions about things in Majora's Mask. If you answer them all right, you will get a Piece of Heart. Keaton's charecteristics are derived from the mythological japanese fox creature, kitsune, and it's appearance may also be a reference to Pikachu.
Minish Cap
In The Minish Cap Keatons apear as enemies.
Quote from The Minish Cap Keaton figurine:
"Appears in various areas. This thieving fox preys upon travlers and merchants. He may not be strong, but he will attack very quickly, so be careful."