Voices in beginning of Ice Climber music (Brawl)

Boo Destroyer

Koopa Troopa
You know in the first part of Brawl's arrangement of the Ice Climber theme, there are these odd voices...

Has anyone managed to figure out what exactly they're saying?
 
I don't play Brawl often, but isn't it something along the lines of "let's do this"?
 
I hear "hey guy" but that's about it.
 
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