World 9-1 (New Super Mario Bros. Wii)

World 9-1 is the first level of World 9 from New Super Mario Bros. Wii. This level is sky-themed and is unlocked by collecting all of the Star Coins in World 1. The level uses the background of World 1 and plays the athletic theme. Like all levels in World 9, there is no Checkpoint Flag.

Layout
World 9-1 is an athletic level with a layout similar to that of World 7-1. There are a number of spinning rectangle platforms around the level. Also appearing is a giant spinning L-shaped platform. Koopa Paratroopas are the main enemy in this stage along with a number of regular Koopa Troopas.

Star Coins

 * Star Coin 1 (pictured): The first Star Coin is floating high above a platform with a red Koopa Troopa. Mario and co. can reach it either by jumping off of one of the Koopas, or by using a Propeller Suit.
 * Star Coin 2: Soon after the first Star Coin, the second Star Coin is floating high above two Koopa Paratroopas and three rotating blocks. Mario and co. again must either jump off of one of the Paratroopas, or use a Propeller Suit to reach it.
 * Star Coin 3: After the second Star Coin, there is a long green Warp Pipe with a Fire Piranha Plant that leads to a secret area. Mario and co. must get on the rotating block and jump from it to a platform on the bottom right, which the third Star Coin floats over.

Enemies

 * Koopa Troopas
 * Koopa Paratroopas
 * Goombas
 * Venus Fire Traps