Ganzack's pirate ship

The massive warship built by Ganzack to achieve his goal of conquering the Grand Line was a massive complex machine. Built beneath his fortress by the enslaved islanders Ganzack unveiled the warship after putting down a rebellion.

The warship was huge. In addition to spikes and cannons it had several special weapons. In the bow of the ship there was a chamber for Ganzack's Seamonster. On top of the forecastle was a massive dynamite gun. This weapon was capable of mass destruction.

Ultimately however with the help of the islanders Luffy, Zoro, Medacka, and Nami defeated Ganzack and sank the ship.