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The Circus is a minigame that appears exclusively in the Wii U version of Sonic Lost World. In the Circus, the player launches characters into the air in order to pop as many balloons as possible and collect as many Rings as possible. Circuses appear on the map as yellow and red circus tents. Once a Circus has been played, it disappears from the map. More Circuses can be unlocked by collecting Red Star Rings.
In a Circus, the player must play a time-limited minigame where they launch Sonic and Tails into Balloons to collect Rings and Animals to assist in unlocking new Zones. To launch the characters into the air, the player controls either a trampoline, a cannon, or a Seesaw (depending on which Zone the circus is in) by sliding the stylus across the Wii U GamePad's screen.
With the trampoline, the player must bounce a character into the air. With the cannon, they must tap the cannon to shoot a character into the air. With the Seesaw, they must make a character land on one end of the seesaw to launch the other. If the player misses a character, that character disappears, and if both characters are gone, the characters are reset to their starting positions. When time runs out or the player loses their characters three times, the Circus ends.
Later on in the game, after Tails is kidnapped during the story, Orbot or Cubot will take Tails' place in the Circus.