Sulphur-Bottom

The Sulphur-Bottom (サルファーボトム号) is a massive airship which Verner Von Bluecher spent his fortune to build and be able to enter the Forbidden Island. Its size dwarves even the Gesellschaft. Mega Man Volnutt fights against Geetz in the top of the airship.

Trivia

 * The theme music inside the Sulphur-Bottom is a arrange of Antonio Vivaldi's "Spring".