The Cosmic Car Key is a mount item that summons a UFO mount. It has unlimited flight time, and is dropped by the Martian Saucer in the Martian Madness event. When the player flies into water when riding this mount, the UFO disappears, leaving the player in the water, so it is recommended to stay above water while using this mount. While traveling straight with this mount, it has a movement speed of about 42mph. If the player prefers underwater working, Shrimpy Truffle serves better. This mount is good fighting Moon Lord, staying away from him.
- Added to the game.