I saw that nobody has done a co-op run for any% or 100% yet. What's the reason for that?

Depends on what you mean by co-op. If you mean 2 people, you need to have irl friends who speedrun this game as well, and that's basically impossible.

If you mean using multiple controllers at the same time, It's very hard to use 2 wiimotes at once in this game (4 wiimotes might actually be faster but would be even harder). Because of how hard it would be, you'd use a lot less co-op exclusive strats, making the run sort of pointless.

4p Co-op would save barely a minute for any% but a lot more for 100%, KirbyMastah has written notes on it up to Raisin Ruins 

https://docs.google.com/spreadsheets/d/12UWmyf50fX7SFJ18JQpZr8Ybs9BbBQgBGKYLYOIW-Ls/edit?usp=sharing

I plan on doing a 3p speedrun of this game soon with my sisters soon.

co-op runs?

CountGooby

Omar

Kirby's Return to Dream Land

rvsupreme

Hachidori

ChaoticKing16

USA / NTSC

JPN / NTSC

Solo

Co-op

Any% Main Mode

100% Main Mode

Kirby Master

Solo/Co-op

Controllers

Co-op Categories

We moderators have revisited the categories that have been requested to be added and have decided to officially add co-op categories.
Running these categories will be great fun. Please feel free to give it a try!

Co-op Categories have been added!

Kirby

question

New idea: Individual power times for arena

Can i submit an arena run with spark?

Hear me out, what about WaddleDeath%? (New Category idea)

Emulation, is it allowed?

Abilityless

Kobral

swordsmankirby

kirbymastah

shirokirby

Demolition14

sokuno

AnimeLuigiBoy

ShgOfc

Kronkeldor

Neon01

Lilsawblade