From WiKirby, your independent source of Kirby knowledge.
||These are Capamari's wacky kids. They all attack at once.
— Patch Plaza
Octopeas are Capamari's children which appear in Kirby's Epic Yarn and Kirby's Extra Epic Yarn during the second phase of the fight. Eight will appear at a time - two from each nook - who will then form into positions in pairs, then dash either upward or downward, hurting Kirby if they make contact. Octopea can be grabbed using the Yarn Whip at any point while it is on stage, and can be thrown back at Capamari to stun the boss and leave it vulnerable to attack.