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

World 9-1 is the first level of World 9 of New Super Mario Bros. Wii. This level is mostly in the sky. This can be unlocked by finding all the Star Coins in World 1.

Layout
Although this stage is unlocked for World 1, the layout is similar to World 7-1. There are lots of spinning rectangle platforms around the level. Also appearing is a big L shaped (also spinning) platform. Like all World 9 levels, there is no checkpoint, making it difficult to traverse the level. Koopa Paratroopas are the main enemy in this stage.

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 to it from the Koopa Troopa, or with a Propeller Suit.
 * Star Coin 2: Soon after the first Star Coin, the second Star Coin is floating high above two Paratroopas and three rotating blocks. Mario and co. again must use either the Paratroopas or a Propeller Suit to reach it.
 * Star Coin 3: Not too far after the second Star Coin, there will be a long Green Pipe with a Fire Piranha Plant which 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
 * Fire Piranha Plants