World 7-4 (New Super Mario Bros.)

World 7-4 is the fourth level of World 7 in New Super Mario Bros..

Layout
This is a very short level, and it consists of many mushrooms and Spin Blocks. It is similar to levels such as World 1-3, but it is a completely vertical level. There is only one enemy in the whole level, a Red Koopa Troopa. The first two Star Coins are above mushrooms. The final one is within a trail of coins near the end. There is also a hidden area with more Spin Blocks and a P Switch, giving the player many coins. After the hidden area is the Goal Pole.

Star Coins

 * Star Coin 1 - The first Star Coin is on top of the rightmost mushroom platform at the beginning of the level. It must be accessed with a Spin Block.
 * Star Coin 2 - The second Star Coin is on a wider mushroom platform to the upper-left of the first one.
 * Star Coin 3 - The third Star Coin is at the very top-left of the level, followed by a path of Coins that lead to the Red Coin Ring.

Secret Exit
The secret exit requires Mario to be in his Mini form. The player needs to hop on a Flying ? Block, then around a pillar to reach a mini Warp Pipe. Going into the Pipe will take Mario to the secret exit, which opens a path leading through the 1-Up Mushroom Toad House, all the way to the castle.

Enemy

 * Koopa Troopa