Pix

Pix is the boss of Rock Star in Kirby 64: The Crystal Shards. Pix is made up of three crystal-like aliens: one red, one blue, and the last green. They fight together. After one of the crystals is defeated it shatters and only an outline of it remains, and can no longer damage Kirby. They appear one by one and seemingly out of thin air during a rather chaotic elevator ride in Rock Star. The fight between Pix and Kirby occurs in the skies of Rock Star.

Kirby 64
Kirby reaches the boss when he enters the spaceship in Rock Star. Kirby starts out on an elevator-like structure and one by one the cystals reveal themselves. The elevator is constantly going up, and about a little more than halfway through the ride all three cystals have appeared. Each of the three crystals project laser beam blades and cut across the circular platform. The crystals are constantly slicing through the arena, so by the time all three are active Kirby must be constantly jumping to avoid them all. Upon reaching the top of Rock Star, the real battle begins, and Pix spins around the arena and transform into swords that try to cut Kirby. Throughout the battle different colored orbs pop up around the arena. These are for Kirby to inhale and exhale back at the crystals. Each of the crystals is only damaged by their respective colored orbs, such as the green crystal only taking damage from the green colored orbs and so on. Each crystal is destroyed after two hits. When all the crystals break, they meet in the center of the arena, spin around, and blow up.