World 4-Airship (Super Mario 3D Land)

World 4-Airship, or simply World 4-6, is the twenty-second level of Super Mario 3D Land.

Layout
The level begins with Mario jumping through various platforms that flip each time Mario jumps. The airship features various spike traps and Rocky Wrenches. More flip panels appear near the last leg on the level, but this time, there is also a Boomerang Bro. Past the Boomerang Bro. is the final airship and where the boss lies. Upon defeating the boss, Mario is taken to the Flag Pole.

Enemies
Enemies that appeared in World 4-1:
 * Rocky Wrench
 * Fake Block
 * Boomerang Bro.

Boss Battle
Like Boom Boom, Pom Pom is a large Koopa, but with a boomerang. Every time Pom Pom is hit by Mario, she becomes outraged and then attacks Mario by trying to spin all over the room.

Collectibles

 * At the beginning of the level, the first Star Coin is found on one of the flip panels.
 * A small opening while inside one of the airships leads Mario to the second Star Coin.
 * The third and final Star Coin is found on the second set of flip panels; the coin must be on the blue side to obtain.