well, it might be at that rating, because when I collected all of the Skull Teeth in the "Jump" levels, it said: "H-E-double hockey sticks (I don't want to say it) yeah! You collected ALL Death's teeth! You ROCK!"
I know that isn't a curse word in Europe, but it could've been an exclamation of excitement? I just don't know. To me, that sounded unexpected when I got to that point in the game.