Discuss the King of Koopas here.

Colonel: Careful, Snake! That's the great and terrible Bowser!
Snake: Bowser? Looks like a cheap movie monster.
Colonel: Hardly. Bowser leads an entire army of monsters. But I'd worry more about his claws and fire if I were you.
Snake: Doesn't look that tough to me. Seems kind of slow, actually.
Colonel: Well, he is the king of Koopas. It's only natural he'd be slow.
But that's only because he's the heaviest fighter here -- by far.
He's a powerhouse of destruction. Be careful he doesn't flatten you.