World 1-4 (New Super Mario Bros. Wii)

World 1-4 is the first underwater stage of New Super Mario Bros. Wii, the first level after World 1-Tower in World 1, and the fourth level of World 1. This level introduces Cheep Cheeps, Deep Cheeps and Eep Cheeps.

Layout
At the beginning, there are two ? Blocks, two Goombas, and a Warp Pipe leading underwater. Here, there are two Cheep Cheeps that can be frozen so Mario can get to the ? Block, which will get him an Ice Flower. There are many bubbles on pipes around the level that can push Mario into walls or enemies.

The next area also has Deep Cheeps which must be frozen along with the Cheep Cheeps. There is also another ? Block with another Ice Flower in case Mario has lost his previous one. Past here, there is a Red Ring in a secret area on top of the stage which will make eight Red Coins for Mario to collect. There is also the checkpoint flag.

In the next area the road is blocked by an Urchin so Mario must freeze it and the road is unlocked so Mario can get through. There is also a Star Coin which is guarded by a Big Cheep Cheep that Mario must freeze to get past. After here, there is a Star Coin guarded by two pipes that generate a current that keeps the player from getting too close. The Star Coin can be collected if the player freezes a passing Cheep Cheep and stands at the top of it as it floats up, fighting the current. A similar one is a short distance forward, where an Urchin must be frozen to block the current and allow the player to pass and collect the Star Coin. In the next area there is a Spiny Cheep Cheep that will follow Mario. He must destroy that fish and then get the 1-Up Mushrooms at the bottom of the screen. There is also a Fire Flower and a Star in the ? blocks. Mario must then go through a Red Pipe. Many Cheep Cheeps populate the next area so Mario has to use his Star to destroy as many as possible and dodge two Spiny Cheep Cheep then go through the green Pipe. Then there is a Koopa Paratroopa that Mario can use to land on the top of the Flagpole at the end of the level.

Star Coins
An Ice Flower is required for all three Star Coins.
 * Star Coin 1: The first Star Coin is floating above a wind-blowing Red Pipe, just after the Checkpoint Flag. Mario and co. must freeze the nearby Cheep Cheep and use it to get on top of the Pipe and get the Star Coin.
 * Star Coin 2: Not too far from the first Star Coin, the second Star Coin is floating high-up between two wind-blowing Red Pipes. Mario and co. must freeze a passing Cheep Cheep and get on top of it at the right time to float up to the Star Coin without getting blown away by the wind.
 * Star Coin 3: Shortly after the second Star Coin, the third Star Coin is located directly under a Clampy, and to the left of two Pipes (one of them blowing wind) and an Urchin. Mario and co. must freeze the Urchin so it will fall onto the wind-blowing Pipe and the Star Coin will become accessible.

Enemies

 * Goombas
 * Cheep Cheeps
 * Urchins
 * Big Cheep Cheeps
 * Deep Cheeps
 * Big Deep Cheeps
 * Eep Cheeps
 * Clampies
 * Spiny Cheep Cheeps
 * Koopa Paratroopas