Kirby Super Star Ultra: Any Hints on how to beat The Arena?

Hey. I got Kirby Super Star Ultra for Christmas and I can't beat The Arena. Can anybody give me helpful advice on how to beat it? I tried ever since I got it and I make it to the last boss, Marx, but I keep on losing.

Practice. :D There's no other way around it.
I know this guy who finished the whole thing in...uh...no, wait, that was True Arena...A really short time.

Choose the Hammer ability at the start, make a helper of it, get the Hammer ability again, and try to keep it by sucking it back up whenever you lose it. And use the Up-B move only. That's how I won it. And it didn't take me long either. :D

Hammer and Yo-Yo. Then just be economic with the Ms.