Sorry, poor word choice on my behalf.
I didn't mean to say they weren't useful. I meant if they weren't useful. Obtaining the Kirby hats is probably the deciding point whether they are worth getting or not.
And if you have an Olimar down below, trying to recover, you can possibly spam him using Kirby's Pikmin Pluck & Throw. I have used it at least against level 9, and what they do is keep on trying to jump, then they will use their final recoveries in vein, and then they fall of the screen. It's pretty fun if you ask me.
Kirby sort of rounds the game up for me. It's like he can take a piece of every character in the game and claim it as his own.
Oh yeah, and I would like to Brawl you again. I may not be great at Brawl, but at least I have fun you know. Although blasting you and Atoyont with Snake's bazooka was a great enjoyment for me. However, I can see your skill, and you definitely best me.