Super Mario Bros 3 Level Design Lessons

If the player misses the opportunity to fly up to the cloud passage, the next two sections serve to introduce some new enemies. The first contains a green Koopa Troopa and three green Koopa Paratroopas that drop from the sky (hinting that there’s something up there). The Paratroopas demonstrate their ability to jump onto and fall down from platforms, while the two pits to the sides serve as an opening to show that enemies can also fall to their deaths.