Excalibur

Excalibur is a alien spacecraft that you ride to Pewter Moon. It appeared on Astro Knights Island and runs on Green Fuel. On Astro Knights, you have to insert the fuel rod into the aircraft found on top of the Ye Olde Rumour Mille.

Trivia

 * It can bring you to all planets if the fuel is full. However, you can only get the fuel to be a little bit full.
 * Excalibur was probably produced on Pewter Moon.
 * You only get to go to Pewter Moon in it. Then, it crashes.
 * It is named after King Arthur's magical sword, Excailbur