Kirby gets this ability when he inhales an enemy that constantly radiates heat around itself, the most common being Flamer. When the ability is used, Kirby is wrapped in a coat of flames and then charges forward at super speed, burning any enemy he goes through. It is able to light fuses, and in all games (except for Kirby Super Star/Kirby Super Star Ultra), it can break through Metal Blocks.
Kirby is set on fire and lunges forward with such great force that he can break rainbow lines drawn by the Power Paintbrush. Kirby is completely invincible while burning through anything, and can bounce off and upwards slightly upon impacting a hard surface during the attack.
Pitch launches forward in a ball of fire. At the end of the swoop he comes back to his partner.
Super Smash Bros. series
In Super Smash Bros. Melee, Burning appears as Kirby's dash attack turning him into a fireball as he plows though his foes. Unlike the original game incarnations, the attack cannot fly through the air as Kirby will begin to fall should he dash attack toward and over a ledge. This attack was replaced with Yo-yo's Break Spin attack in Super Smash Bros. Brawl.
Kirby can turn into a flying fireball! Jump and attack in a flash of fire!