A highly iconic copy ability, and a highly-accessble one, Kirby gets Sword from inhaling common sword-wielding enemies, and dons Link's green cap from the Legend of Zelda series. Highly melee-oriented and having a wide range of moves, Sword is as versatile as it is common, being able to attack in all directions and having one extra ranged attack to boot. Sword has been featured in almost every game since Kirby's Adventure.

Kabu is a regular enemy in the Kirby series of games, but has a pivotal role in Kirby: Right Back at Ya! as Kirby's ally. In the anime, Kabu is an extremely old stone statue, resilient even to bombardment by Destrayers, and serves as a recovery center for Star Warriors and damaged Warp Stars. Tiff hid Kirby's Warp Star inside Kabu after finding a perfectly-fitting slot on a pedestal, and only Meta Knight and Tuff know the place besides herself. Kabu is responsible for sending out the Warp Star to Kirby when Tiff calls for it, and repairing it to full strength after being damaged by Air Riders.

Zero is the final boss in Kirby's Dream Land 3 with power over Dark Matter. Little of Zero's backstory is given, so he has remained one of the series most mysterious villains. Zero is confronted only if Kirby collects all the Heart Stars, otherwise the game ends with what is commonly referred to as "the bad ending". The Heart Stars form the Love-Love Stick (Heart Rod), which is used against Zero. Despite its apparent defeat after the events in Kirby's Dream Land 3 ('the good ending' is canon) - Zero returns once again as a secret boss, 0², in Kirby 64: The Crystal Shards, the sequel to Kirby's Dream Land 3.