The Sky Moon (スカイムーン) is an enemy robot that appears in Sonic Rush Adventure.
Sky Moons are orb-like robots outfitted with two arms and a propeller that keeps them afloat. They come in two varieties: Yellow and Red.
Yellow Sky Moons simply hover about in the air and can easily be destroyed by jumping or Boosting into them. While normally found in Sky Babylon, they can also be found in Hidden Islands 5 and 16. Red Sky Moons are capable of defending themselves by shooting small lasers at the player, but can be taken out just as easily as the yellow ones. This variety appears exclusively in Sky Babylon Act 2.