By absorbing the powers of two fiery foes, you can transform into a fireball to charge and char anything in your path.”
— Description • Nintendo Power (Volume #134)
Super Fireball is a combination ability used in Kirby 64: The Crystal Shards made by mixing two Burning abilities. Super Fireball travels farther and does more damage than regular Burning, and the length of travel does not decrease with repeated usage.
Kirby transforms into a form somewhat like a phoenix and flies forward on fire. This attack is only different from normal burning in the way that it is larger, stronger, and travels farther.
Kirby turns into a giant phoenix fireball that streaks across the screen.”
— Description • Official Strategy guide
Kirby forms a giant flame bird that streaks across the sky, destroying all enemies in its path. Be careful where the power quits, though. You don't want to fall into an enemy or a dangerous surface.”