Cappy

Cappys are enemies in the Kirby series. They are bouncing mushroom-like foes and have no copy abilities. If Kirby uses his inhale on them, the mushroom cap is sucked off - revealing Cappy's true form. Kirby can then spit the mushroom cap back at Cappy, killing it. If Kirby has a copy ability, he can just attack it with that destroying it in one hit, making it weaker than a Waddle Dee.

In the anime, these were commonly used as extras and featured a town full of them.

Kirby's Dream Land
Cappies are found in the game's first level Green Greens where they mostly just hop around minding their own business. They are usually seen wearing mushroom caps. When they are wearing hats, Kirby must use his inhale to remove them. This will then reveal the Cappy's true face and they can then be taken out with the inhaled cap. Another method for defeating them is to just spit a puff of air at them while they still have their caps.

Some of the Cappies are stationary and just wiggle in place. These ones are inhaled along with their cap if Kirby tries to eat them.

Sometimes Cappy appear without their mushroom caps. These ones are even weaker than a Waddle Dee but make up for it by appearing in groups of two.

In Extra Mode, Cappy is replaced by Blopper.

Kirby's Adventure and Kirby: Nightmare in Dream Land
Cappys always wear hats over their heads.

Kirby Super Star and Kirby Super Star Ultra
Similar behavior as in Kirby's Dreamland. They are sometimes seen trying to throw their hats off. In Revenge of the King, there is an altered version of Cappy's, called Poison Mash. They are gray and have sad faces. They still jump around a lot though.

Kirby Air Ride
Occasionally, they are seen hopping around in the middle of the track. If you inhale at them, their cap will be sucked off, they will freak out, and run away.

Kirby's Block Ball
A small Cappy appears at the last room of the first stage in this game. After the player hits it four times, the player will move on to the room with the Cappy boss.

Kirby: Canvas Curse
Cappys make an appearance in this game as enemies.

In the Kirby anime
Cappies played a major role in Kirby: Right Back at Ya! as citizens of Cappy Town. In the anime, they are ironically capless and are allies to Kirby. They reluctantly live under the rule of King Dedede.

In Super Smash Bros. series
They appear as trophies in Super Smash Bros. Brawl.

Trivia

 * Cappy strongly resembles the characters Gyroid and Lloid from the Animal Crossing series
 * Cappy is the only common recurring enemy to not appear in Kirby 64, not counting bosses.