|“||Attack with circus-themed moves, like making balloon animals!”|
|— Kirby Battle Royale - Kirby's 25th Anniversary Copy Ability Poll|
The Circus ability allows Kirby to use many circus-related moves. He can quickly juggle flaming bowling pins, inflate balloon sculptures that pop and damage nearby enemies, jump through fiery hoops, balance on large balls, and bounce on trampolines. All attacks that use fire can break ice blocks. Most of Circus's attacks are stationary or take Kirby back to where he were originally standing, making it a weaker ability in terms of its mobility options.
|Somersault||B||Kirby leaps forward, damaging any enemies on the way out, then leaps back towards his original position.||None|
|Backward + B||Similar to Somersault, but Kirby leaps backward and does not leap back to his original position.||None|
|Dash + B||A flaming hoop appears above and in front of Kirby, and he jumps through it, catching fire and rolling upon landing on the other side of it. Kirby is invincible throughout this move.||Sizzle|
|Ball Balance||↓ + B||Kirby balances on a spinning ball. Kirby can also move a small distance upon using it. Kirby shifts between two different balancing animations for this move and is invincible throughout the duration.||None|
|Baton||↑ + B||Kirby juggles purple batons above his head. Like with Ball Balance, Kirby can choose to move a small distance.||None|
|Flame Baton||↑ + B (Repeatedly)||A continuation of Baton that deals increased damage. The batons catch fire soon after Kirby begins juggling.||Sizzle|
|Trampoline||Press and hold ↓, and then ↑ + B||Kirby jumps on a small blue trampoline that appears under him in a straight vertical line, dealing continual damage.||None|
|Acrobatics||During Trampoline, ↑ + B in midair||Kirby continues to leap into the air following his first leap. If the trampoline falls on an enemy following the second jump, it will deal damage.||None|
|Balloon Pop Art||Press and hold B||Kirby blows up a balloon of one of many shapes, then pops it, dealing damage around him.||None|
|Is this for real? You bet it is! Jump through a flaming hoop, and show off your finest Acrobatics! After the curtains close on your foes, they'll know the clown arts are no joke.|
|The citizens of Popstar live to be entertained. This Copy Ability is guaranteed to blow their socks off!|
- Circus Kirby's Balloon Pop Art attack can take on different forms. Some of the balloon sculptures created include Meta Knight, Magolor, Nightmare's Power Orb form, and the HAL Laboratory logo.
- Circus, along with Animal, Cutter, and Spider, are the only abilities to include eyes as part as their design.
- Circus is one of the four abilities in Kirby: Triple Deluxe that can break ice blocks. The others are Fire, Fighter, and Hammer.
- In the Japanese opening of Kirby: Right Back at Ya!, a Circus-like ability appears.