Colosseum

The Colosseum sits atop a small cliff overlooking Waddle Dee Town. It allows Kirby to enter a battle tournament with previous mid-bosses and bosses, akin to that of The Arena and The Ultimate Choice in previous games (with the final cup being equivalent to The True Arena and Soul Melter EX). It is also the only area where Meta Knight, Phantom Meta Knight, and Chaos Elfilis can be fought.

The Colosseum is first unlocked after defeating Clawroline. Kirby must register for a tournament with Commentator Waddle Dee at the reception desk next to the Colosseum's entrance in order to play; doing this will allow the player to select a difficulty level, affecting which bosses appear and how many of them have to be fought.

Each difficulty level gives a reward upon completion, with higher difficulty levels yielding greater prizes. The player may bring whatever Stock Item they currently have as well as receive item buffs before actually entering the tournament. If Kirby is defeated, he can pay Star Coins to retry from the same level though stock items won't be recovered, and the cost will increase in consecutive retries.

## Meta Knight Cup

The Meta Knight Cup is available immediately when the Colosseum is unlocked. All of the bosses shown below are fought in random order, except for Meta Knight who is always fought last. Beating this difficulty level gives Kirby 500 Star Coins and 1 Rare Stone, as well as the Meta Knight Sword Blueprints when it's beaten for the first time. There will be 6 Maxim Tomatoes, with a normal tomato replacing them if used in the previous room, and two random Copy Essences.

* Mid-Boss All Stars 1 (Wild Frosty and Wild Bonkers)
* Mid-Boss All Stars 2 (Wild Edge and Fleurina)
* Gorimondo
* Tropic Woods
* Clawroline
* Meta Knight

## Ultimate Cup

The Ultimate Cup is unlocked after defeating Fecto Elfilis in Lab Discovera. Beating this difficulty level gives Kirby 1500 Star Coins and 1 Rare Stone, as well as the Fecto Elfilis Gotcha Capsule when it's beaten for the first time. There will be 6 Maxim Tomatoes, with a normal tomato replacing them if used in the previous room, and two random Copy Essences.

The first eight bosses are fought in random order:

* Mid-Boss All Stars 1 (Wild Frosty and Wild Bonkers)
* Mid-Boss All Stars 2 (Wild Edge and Fleurina)
* Gorimondo
* Tropic Woods
* Clawroline
* Meta Knight
* King Dedede
* Sillydillo

The last four are fought in a set order:

1. Forgo Dedede
2. Leongar
3. Fecto Forgo
4. Fecto Elfilis

## Ultimate Cup Z

The Ultimate Cup Z is unlocked after clearing Isolated Isles: Forgo Dreams and defeating Morpho Knight. Beating this difficulty level gives Kirby 2500 Star Coins and 3 Rare Stones, as well as the Chaos ElfilisGotcha Capsule when it's beaten for the first time. There will be 6 tomatoes and one random Copy Essence with the exception of Sleep.

The first seven bosses are fought in random order:

* Mid-Boss All Stars 1 (Wild Frosty and Wild Bonkers)
* Mid-Boss All Stars 2 (Wild Edge and Fleurina)
* Phantom Gorimondo
* Phantom Tropic Woods
* Phantom Clawroline
* Phantom Sillydillo
* Phantom King Dedede

The last five are fought in a set order:

1. Phantom Meta Knight
2. Phantom Forgo Dedede
3. Forgo Leon
4. Morpho Knight
5. Chaos Elfilis