World 5-A (New Super Mario Bros.)

World 5-A is the first bonus level of World 5, in New Super Mario Bros.. It can be unlocked by spending five Star Coins.

Layout
This level has mushroom platforms that shrink and expand. Mario needs to time his jumps, because not all platforms move together. After the checkpoint, Mario can get the first Star Coin by going down to a mushroom platform. He needs to hit a ! Switch to return. Just after that, Mario should find a single block. If he hits it by running and jumping, a Beanstalk will pop out, taking him to an area with the second Star Coin. The player should later see two mushroom platforms that are able to touch each other. Mario should stand in between them and jump when they shrink, getting the last Star Coin. Then, Mario will reach the Flagpole.

Star Coins

 * Star Coin 1 - Mario can go to the mushroom near to red ! switch. After it expands, he can quickly grab the coin located to the right.
 * Star Coin 2 - After hitting the block by either running and jumping or with a Koopa shell, Mario can climb the beanstalk and get the coin.
 * Star Coin 3 - Right after the mushrooms shrink, Mario should land on the platform to get the coin.

Enemies

 * Koopa Troopa