Flashes of Fear
When either Space of Silence or Drenchnozzle Den are completed, a cutscene plays where the S.S. Dolphin II tells Captain Olimar, inside the cockpit, that it found a large treasure, and also a fearsome beast. After the Distinguished Speaker is collected, a similar cutscene plays, with the ship announcing that it found a new sector, the Leafswirl Lagoon, and that it is a very windy one.
The area starts on top of a pipe that goes a bit to the right and up, and eventually dips down into the floor, forming a wall too tall to climb back up to. This floor makes up the boss battle arena, and it has a similar wall on the other side, with the two roughly 2 screen widths apart.
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