Warning: Spoilers ahead.
How is Mario supposed to defeat a massive Fury-enhanced Bowser "normally"? 'Cause unless there's an absolutely massive axe that I don't see, the Giga Bells are the only option. Also, Bowser is a giant, fire-breathing, spiky-shelled turtle, whose nemesis eats mushrooms to grow bigger, and flowers to shoot fire. Many of the occupants of this world are people with mushrooms for heads, and sound like heavy smokers. What is the definition of "normal" here?