Big Swell

'Big Swell' is the semi-final zone of Sonic Rush Adventure''. It is an only boss stage and you fight the Ghost Titan. You defeat it by spin jumping robots into the cannons of waiting for the titan to shoot, punch, or slam the cannon shield. Then get in the cannon and when the target crosses itself, press jump and you'll shoot yourself at the robot. Do this repeatedly until it reaches very low health. At this point, the Ghost Titan flies up close and begins using a powerful laser beam in an attempt to destroy the platform. It slowly falls lower to the ground, and you can hit it right before it destroys the platform to kill it.

Big Swell is located above Pirate's Island and is represented by a violet and orange sunset and rocks in the ocean on the Sea Chart. It is the penultimate boss battle in Sonic Rush Adventure, the last being Deep Core. There are only 16 total rings, which can be obtained by jumping off of the cannons, catching in midair while falling from the head of the Ghost Titan, or simply jumping to get the ones close to the ground.