Zone 12: Sky City Zone (Super Sonic Doom)

Sky City Zone is the twelfth zone of Super Sonic Doom.

Act 1 Begins in the sky on an airship. The player will encounter Gluttony, and he will make the Boss fight A Challenge. He will appear a Cyberdemon in the Platform Arena. The music for this act is "Sky Chase Zone", Sonic 2.

Act 2 Starts on a big floating platform. There is a door that needs to be opened to advance to the next part.

Eventually one of the seven sinners, Gluttony appears and blows up a bridge connecting the sides and then summons a Spider Mastermind for the player to face. There is several metal platforms that the player must cross to get to the other side. In a huge storage area, the player faces Gluttony who shoots ghosts and tornadoes similar to Heretic's iron lich's tornadoes with the same effect. After killing Gluttony, several stealth Hell Knights appear to harass the player after this the player goes to a floating airship to destroy it. They must jump on floating platforms and hit eight switches to reveal the targets on the ship to shoot it, while dodging fireballs along the way. The ship then takes off and the player must get on a bigger gray building that resembles an airship and takes off into space. The music for this act is "Sky Sanctuary Zone", Sonic 3 & Knuckles.