6 : Dark Blue Moon -

While traveling by sea toward Singapore, the Joestar group is accompanied by a runaway girl named Anne. They discover that the ship's captain is an impostor working for DIO. The impostor drags Jotaro Kujo into the ocean, where his Stand, Dark Blue Moon, holds a massive advantage.

Despite being trapped in a whirlpool and drained by barnacles, Jotaro defeats the Stand by focusing all of Star Platinum’s energy into its fingers. This allows him to perform the technique, extending his fingers with enough force to cut through Dark Blue Moon’s head. 6 : Dark Blue Moon

Its claws are sharp enough to slice a shark in half or destroy a ship's propeller. The Defeat While traveling by sea toward Singapore, the Joestar

By rapidly spinning its webbed feet, it can create powerful whirlpools to trap and crush enemies. Despite being trapped in a whirlpool and drained

It can attach parasitic barnacles to an opponent’s Stand, which drain their energy and make it difficult for them to move.

Dark Blue Moon is designed specifically for marine combat and is described as being faster than any sea creature.

It can launch sharp, scale-like projectiles that act as blades in the water.