[GC] Super Mario Sunshine gameplay problem

[n0iz93]

Basically due to problems with my controllers, I have to play SMS on my computer.
Anyway, for some reason even when I clear the goo in SMS, it's still slippery.

How do I fix this?

http://i.imgur.com/0QVWS.png

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Don't worry, I fixed it.

I did this to fix it :
http://wiki.dolphin-emu.org/index.php?title=Super_Mario_Sunshine#configuration