World 9-3 (New Super Mario Bros. Wii)

This course has the background of World 6. It features Missile Bills and Missile Banzai Bills. POW Blocks cannot defeat these enemies. The floor resembles that of World 7-2.

Enemies

 * Missile Bills
 * Missile Banzai Bills
 * Bill Blasters
 * Koopa Troopas
 * Koopa Paratroopas

Trivia

 * Although this level has Missile Banzai Bill, Banzai Bill Blaster doesn't appear.