Ball

"Change form and hold the A button! BOUNCE! BOING! BONK!"

- Ball's Flavour Text

Ball is a rare, semi-useful copy ability that only appears in Kirby's Adventure, and its remake, Kirby: Nightmare in Dream Land. With this ability, Kirby can become even rounder than normal and bounce around, damaging enemies if he is moving fast enough.

This power does not work underwater.

Kirby's Adventure
Ball is one of the more powerful abilities (equal in power to Hammer when used on mini-bosses), but difficult to control and very easy to lose. It can be incredibly tricky to use on enemies that can fly or bosses. Also, Kirby is still vulnerable to grab attacks used by some of the mini-bosses...

Kirby: Nightmare in Dream Land
While bouncing, Kirby can now resist grab attacks. Also, the top boundary now counts as a ceiling. The hat is also gained, otherwise it is still the same as Adventure.

Spinoffs and other Kirby games
Ball Kirby is the lead ability an a few Kirby Games, including Kirby's Pinball Land, Kirby's Dream Course, Kirby's Block Ball and Kirby Canvas Curse all run off the idea of Kirby being a ball to be pushed around by paddles, magical paintbrushes, etc.. (However, the true Copy Ability isn't used.)

Super Smash Bros. Series
Ball Kirby is one of three Copy Abilities that appear as a Trophy In Super Smash Bros. Melee. The others being Fire and Fighter. Out of these three it is also the only one that doesn't return in Super Smash Bros. Brawl.