- Purple Plants (replaces Green Greens)
- Illusion Islands (replaces Float Islands)
- Crash Clouds (replaces Bubbly Clouds)
- Mt. Dedede Sky
- The Revenge (replaces Mt. Dedede)
Many of the enemies in this game have been replaced by stronger and/or faster counterparts who have more stamina. While the replacements are significantly stronger and violent, they have the same overall behavior as the enemies that they replace. Many of the replaced enemies originate from the Extra Game in Kirby's Dream Land. Many Waddle Dees also now wield spears.
- Bronto Burt is replaced by Koozer
- Poppy Bros. Jr. is replaced by Perot
- Cappy is replaced by Poison Mash
- Blade Knight is replaced by Sword Knight
- Twizzy is replaced by Croucars
- Grizzo is replaced by Galbel
- Lovely is replaced by Rosely
- Squishy is replaced by Flotzo
- Kabu is replaced by Grumples
- Shotzo is replaced by Blatzy
- Tookey is replaced by Cawcun
- Scarfy is replaced by Mad Apple
- Poppy Bros. Sr. is replaced by Phan Phan
- Mr. Frosty is replaced by Fire Lion
- Bonkers is replaced by Grand Wheelie
- Also, Mr. Tick-Tock has been added in.
All bosses have higher stamina, defense, and attack power than their weaker counterparts, and also have several new moves.
- Whispy Woods is replaced by Whispy's Revenge. This Whispy can drop poisonous, purple apples (which can't be digested and explode when inhaled), larger bugs, and blows small tornado-like whirlwinds.
- Lololo & Lalala are replaced by Lololo & Lalala's Revenge. The fight introduces an entirely new row for the duo to move on and Gordos now make much more frequent appearances, both being pushed by the duo as well as appearing on rows on their own.
- Kracko Jr. is replaced by Kracko Jr.'s Revenge. His attack pattern is more erratic and fast-paced than before, as well as much more unpredictable.
- Kracko is replaced by Kracko's Revenge. His star beam now reaches slightly farther than before, his rain tracks in on Kirby, and he shoots additional lightning from the screen's center to all sides.
- Kabula (a revamped version of Kaboola from Kirby's Dream Land) appears as the fourth level before The Revenge. She can now shoot out bullets, Gordos, and huge missiles.
- The bandana-clad Waddle Dee from Megaton Punch also appears as a boss. His only form of attack is to run into Kirby and jump on him, which does very little damage. The easiest way to defeat him is to simply inhale him.
- King Dedede goes by the alias of "Masked Dedede" in this sub-game. He now dons a metal mask and has an electrified hammer that he calls the brand-new Dedede Hammer (which, when pounded on the ground, creates a surge of electricity that will run through the floor) that is equipped with a missile launcher (the missiles give Kirby the Bomb ability) and a flamethrower. King Dedede also has a new move - he can spin around the arena with his hammer. Like the Meta Knight boss fight in this game, Kirby also has the option to pick up a Copy Ability to fight him with - only instead of a sword, the weapon is a hammer. Also, the arena that Masked Dedede is fought in is surrounded by an electric fence - so Kirby must be very careful if he does not want to immediately lose his ability upon contact with the wall.
|Main article: Revenge of the King/Transcript|
- Revenge of the King brings back some of the original elements from Kirby's Dream Land, such as Lololo & Lalala's Revenge having four columns to move in, and map similarities to Kirby's Dream Land, particularly the areas in Illusion Islands and Crash Clouds. It also brings back Kabula, the original boss of Float Islands.
- As such, it could be considered a remake of Kirby's Dream Land's Extra Game. However, it is still considered easier than said game due to the presence of Copy Abilities.
- Revenge of the King includes references to Revenge of Meta Knight, primarily in The Revenge.
- The dialogue between Dedede and Bandana Waddle Dee is similar to the dialogue between the crew of the Halberd.
- Kirby is offered an ability matching the weapon used by the final boss before fighting it in both sub-games.
- Masked Dedede's mask may be a reference to the fact that Meta Knight wears a mask. Additionally, both boss fights end with said masks shattering.
- The credits theme is a take on Dedede's theme in the style of the credits theme from Revenge of Meta Knight. Additionally, both credits sequences take place in a desert at sunset.
- Kirby can have a maximum of 11 lives; one from Purple Plants near the end, two in Illusion Islands in the blocked off room and the HAL room, three from Crash Clouds in the beginning, the room before the final room in the chasm near the Sword Knight, and the Moon secret area, and finally, two in The Revenge, one in the room after Grand Wheelie, and one near the end, plus the default three lives.
- Along with The True Arena, the Revenge of the King is the only sub-game unlocked after Milky Way Wishes in Kirby Super Star Ultra in which the player can play as Kirby.
- During the credits, Bandana Waddle Dee can be seen walking close to King Dedede. However, when the camera pans out to view the crowd of Waddle Dee's following Dedede, Bandana Dee is seen further away from the King.