Walkthrough
After activating the Hidden Switch in Planet Frostak, you will unlock the extra stage of Extra Planet B. This level consists of a number of breezy areas, along with a few puzzles to solves and fights to be had. Outside of the next Rainbow Puzzle Piece, this level also see you face two more Mini Bosses.
The level begins in another icy area, where you will need to dive far below to find a Broom Hatter. The area following this occurs in a breezy cave, one full of Gordos that you will need to dodge with Kirby. In the middle of this given area, a Post can be pounded in order to find a round trip door. Within this door is a puzzle that has two separate parts, and if solved correctly, will see you obtain the next Rainbow Puzzle Piece.
Once you reach the next icy area, you will need to jump between floors with Kirby as they get pushed forward, eventually leading you to the final area of Extra Planet B. In this last area, you will have to face off against two Bonkers. One of the Bonkers will be the same you are use to, while the other will be seriously buffed in terms of power. Definitely use the props around you to help defeat these two. Once they are taken care of, the final exit should be in sight.
Copy Abilities
Cleaning, ESP, Hammer, Parasol, Spider, Stone, Yo-Yo
Broom Hatter, Como, Gim, Gordo, Jambeliever, NESP, Parasol, Scarfy, Waddle Dee
Twin Bonkers (Normal & EX)