Key Masters are hand-shaped enemies that are found in some dungeons in Spirit Tracks. Their purpose is to prevent Link from moving the Big Key from its default location to the lock it is inserted to. Key Masters only appear once Link disturbs the Big Key and vanish once the key has either been put into the appropriate lock or returned to where it was found. Key Masters are invincible, but can be stunned briefly with a strike to the eye. They move only toward the key, limiting Link to only be harmed from them if he stands, with the key, while one drops from above.