On the single-player menu there is a practice option, which is perfect for speedruns, since it has an in-game timer, no RNG, no other players and some cool strats, showing it to be a good test of skill. Right now there is only one category here, and i think "Free Rolling" could be a fun new addition.

you can speedrun getting to end in it as fast as posible i have alredy tried it and is fun also maybe getting to x points

Defeating Whispy Woods in free rolling could maybe be a good category.

If they are planning on adding free rolling categories I think they should be added as misc. For one because it is just a practice mode and you can't really do anything except maxing out Kirby's size and defeating Whispy Woods.

That’s more categories than we currently have, I thing a plain free rolling category would be better than a miscellaneous one.