Egg Fort

The Egg Fort was a flying fortress used by Dr. Eggman

Eggman constructed the Egg Fort under his original base, expecting the President to order an attack. When Rouge, Knuckles and Topaz did launch an attack, he boarded it and used it in episode 15 to attack Station Square. However, Sonic destroyed it.

He later made it moble and used it again in three more episodes, but was again proven useless. In Cruise Blues, Eggman abandoned it for the Egg Fort II. What was left was salvadged by G.U.N. and reconstructed into the Gun Fort, using it to pit against Eggman.