He sings: “Passarinho que som é esse?” (in english can be translated as “Little bird which sound is this?”)
The second is another one they adapted:
He sings: “uh uh estou sentindo boas vibrações” (in english can be translated as: “uh uh I’m feeling good vibes”)
and in case you guys are curious of what he says next
PT:“Aumenta o volume!” EN:“Raisin’ the volume!"
The last and 3rd one is a popular brazilian saying:
He sings: “Quem canta seus males espanta” (in english can be translated as: “Singing chases away the evils”)
Just a side note: his tone suggests he’s mocking the enemies. He says a lot of provocative things when he is fighting and he is always laughing when he does it. Never fails to make me laugh when I’m playing with him.
*edit: Forgot to mention that there’s another one. but it’s really rare to get (took me some time to find it ;_;)
He says: “Todo carvaval tem seu fim…” (in english can be translated as: “Every carnival has its end…”)