Carnival Night Zone

Carnival Night Zone is the fourth level in Sonic the Hedgehog 3 and Sonic 3 & Knuckles.

Bosses

 * Bowling Spin
 * Graviton Mobile

Trivia

 * In Sonic 3 & Knuckles, in the Knuckles Alone story, in Act 2, Knuckles doesn't face the Graviton Mobile boss in Act 2, because he has to skip the boss battle and jump on the Capsule to clear the second act.
 * This level is known for having a barrel in Act 2 that is difficult to pass by. It is often dubbed "The barrel of doom" for this reason.