"No More Mr. Nice Guy!" is a song sung by Darwin in "The Words" when he goes overboard with being more direct. Darwin sings it at a lower pitch than his normal voice (which is provided by Dan Russell).[1]
Lyrics
Darwin: No more Mr. Nice Guy!
I've found a new style,
With claws, and pointy teeth,
And a villainous smile!
Goodbye goody two shoes
I'm no longer uptight.
'Cause now I'm a shark
And I'm ready to bite!
And I'll say what I want,
And the truth's gonna sting
I'll be brutal and blunt
It will hurt when I sing!
So look out worl— [Cut by Gumball]