Haunted Ship

Haunted Ship is the fourth zone of Sonic Rush Adventure. It is actually a fleet of pirate ships lost in an eerie fog. Features in this zone include swinging anchors, elastic ropes, and cannons, the 3D gimmick. To use cannons, hop into one and it will self-fire. You can get more boost on the Boost Gauge if you press a certain button when passing through large hoops while in flight.

The boss is Ghost Pirate. It is a large skeleton in a pirate hat wielding a cutlass. It has a red core, which is the thing you want to hit to deliver damage. After hitting it several times, the core flies to the top of the pirate ship you're fighting on. This repeats.