Cutter

Cutter is an ability primarily obtained by absorbing a boomerang-throwing enemy. This power allows Kirby to perform one of several boomerang-like attacks, the actual variations of which vary between games. It was introduced with a yellow color in Kirby's Adventure, while in Kirby Super Star it was changed to blue, then yellow again in Kirby's Dream Land 3 and all subsequent games (including Kirby Super Star Ultra, Kirby's Return to Dream Land and onward).

Kirby's Adventure / Kirby: Nightmare in Dream Land
Cutter Kirby first appearance is Kirby's Adventure which marks the debut of Copy Abilities. the player can make Kirby throw up to 3 cutters that return like boomerangs by pressing the B button. If Kirby jumps out of the way of his returning cutter, it will fly past him and off the screen, making this ability useful as a long-range attack from behind. Kirby uses the default sprite for this ability.

Kirby's Dream Land 2 & Kirby's Dream Land 3
Cutter is one of the base abilities which can be obtained. When Kirby is alone, it functions largely the same as it did in Kirby's Adventure, but it can be paired up with one of the Animal Friends to create a large number of variants. Cutter is fairly useful when used in this way for quickly dealing damage and clearing away enemies.

Kirby Super Star / Kirby Super Star Ultra
In Kirby Super Star and its remake, Kirby Super Star Ultra, Kirby can also obtain the cutter ability through Copy Essence Deluxes. With the cutter ability equipped, Kirby can create Sir Kibble as a helper. Kirby's visual appearance only changes by the addition of a yellow helmet.

Kirby 64: The Crystal Shards
The Cutter copy ability undergoes a redesign in the third dimension, in Kirby 64: The Crystal Shards, though the method used to obtain it is identical to previous versions. Instead of throwing some sort of sharp projectile, Kirby uses his own flesh to produce a boomerang-like weapon that can be used in the same fashion. New to Kirby 64: The Crystal Shards is the process of copy ability upgrading and intermixing - the Cutter ability can be upgraded simply by swallowing two boomerang-like or boomerang-throwing enemies; the new power will be a large, curvaceous projectile that is created from a great percentage Kirby's small body, not to mention the spikes the boomerang boasts on its outer edge.

Like all copy abilities in Kirby 64: The Crystal Shards, the Cutter ability can be mixed with other abilities to produce different effects. For example, mixing the Fire and Cutter copy abilities will yield a flaming sword, a power that takes both attributes into account, while intertwining the Bomb and Cutter abilities will yield a explosive throwing-star projectile.

Kirby & The Amazing Mirror & Kirby: Squeak Squad
Cutter returns in these games, acting much as it did in Kirby: Nightmare in Dream Land and once again provided by Sir Kibble. Notably, the Final Cutter technique appears in Kirby & The Amazing Mirror, but it is not performable using Cutter, instead being attached to Smash and Master.

In Kirby: Squeak Squad, an Ability Scroll can be obtained which increases the size of the cutter blade and allows it to pass through multiple targets.

Kirby's Return to Dream Land
The Cutter copy ability is also existent in Kirby's Return to Dream Land. Kirby's Cutter Ability is fairly similar in appearance and functionality to the Cutter Kirby in Kirby Super Star. The Cutter ability is used often to cut ropes, notably, one Energy Sphere in the game requires use of Cutter Boomerang to access, and cannot be accessed with any other ability.

Kirby Fighters Deluxe
Cutter is one of the selectable Copy Abilities which can be used in this game. Its move-set is largely unchanged from its appearance in Kirby: Triple Deluxe.

Kirby: Planet Robobot
Cutter returns in this game, largely unchanged from its appearance in Kirby: Triple Deluxe. It can now be used in tandem with the Robobot Armr to form the potent Cutter Mode, which can slice giant wooden beams and chains, and deals massive damage to enemies.

Kirby Battle Royale
"Ah, the Cutter ability. Those slashes sure are satisfying. There's nothing like a good charge session...and a Hyper Cutter!"

- Knuckle Joe's comment in Kirby Battle Royale Cutter is one of the first abilities available in Kirby Battle Royale, and is also available along with Sword and Beetle in the Demo version. It is distinguished from the other abilities by its blade projectiles being able to bounce off of walls and other barriers.

There are three alternate pieces of Headgear for the Cutter ability. These are the "Sir Kibble Helmet", the "Mohawk", and the "Knight Helmet".

Kirby Star Allies
Cutter appears in this title, along with Sir Kibble who can utilize its full move-set when recruited as a Friend. In addition to its standard attributes, Cutter can be enhanced using one of the five Power Effects, adding elemental power to the boomerangs and in some cases, altering their trajectories.

Super Smash Bros. Series
In the Super Smash Bros series, Final Cutter is Kirby's Up Special Move in all installments. It's useful for recovering, but causes Kirby to plummet off-stage if he misses the ledge. It also shoots out a projectile if Kirby lands on the ground which can lightly knock back opponents. If opponents are hit during the downswing of the blade, they will be sent flying downward at a fixed velocity.

In Kirby: Right Back at Ya!
"Kirby has transformed! He is now Cutter Kirby! Cutter Kirby can battle his opponents with the cutter on his cap!"

- Meta Knight describing Cutter Kirby in The Fofa Factor In the anime series Kirby: Right Back at Ya!, the Cutter ability makes its first appearance in Episode 9: The Fofa Factor, when Kirby obtains it from the monster Slice n' Splice. The ability functions largely the same in the anime as it does in the games, though its ability to cleave through objects is highly exaggerated.

Trivia

 * In Kirby Fighters Deluxe, the alternative hat for Cutter Kirby is the helmet of Sir Kibble.
 * This ability is one of two abilities, along with Ice, to appear in every main series game since Kirby's Adventure.
 * In Kirby: Nightmare in Dream Land, the pause description for the Cutter ability references the name of the anime, Kirby: Right Back at Ya!.