Sky Babylon

Sky Babylon '''can be the fifth or sixth Zone of Sonic Rush Adventure. If the player goes to Blizzard Peaks first, Sky Babylon will be the sixth stage. The whole stage takes place on a floating island, far up in the sky, similar to Angel Island, and has several ancient ruins and constructions all over the place. '''

In terms of gameplay style this level is similar to Sonic Rush's Altitude Limit. The gimmicks of this level features golden balloons that allows the player to fly through the air, but with limited control, springy lines of rope and purple crystals that allows the player to hover over bottomless pits. This stage also features fire that can harm the player when they get close, but the flames will be extinguished if the player is either boosting or playing as Blaze.

The stage's boss is the Ghost Condor. In battle, it can deploy mines along the road where the fight takes place and send platforms with spikes to attack the player from above or to each side. It can also fire missiles if the player remains for too long at its platforms. Finally, it can send its main body down and launch it directly at the player.