The following weapons can be found in Circus Park: robots, or simply find the white Chaos Emerald.
The player can choose to help Tails recover the rings, eliminate the G.U.N. Further in the level, Shadow runs into the Egg Monitor, who conversely asks Shadow for his help in defeating the 'G.U.N. Undaunted by his violent arrival, Tails suggests to Shadow that they should team up and recover all the rings Eggman has collected in the park. troops, bailing out and leaving the Cyclone to spiral away into the distance), and it is later revealed that he came to retrieve the rings that Dr. For an unknown reason, Tails crashes his plane (the fox is most likely shot down in the crossfire between Eggman's defenses and an attacking force of G.U.N.
As he approaches the carnival, he spots Tails flying overhead in the Emerald-powered Cyclone. Shadow arrives at Circus Park searching for the fourth Chaos Emerald.