World 3-3 (New Super Mario Bros.)

World 3-3 is the third level of World 3 in New Super Mario Bros..

Layout
This level may be difficult without a Fire Flower because it contains many Cheep-Cheeps and Bloopers. Mario must enter the Warp Pipe, which takes him underwater. He then needs to keep swimming, while avoiding all of the Cheep-Cheeps and Bloopers. Almost halfway into the level, the player can go down to find the first Star Coin and a ? Switch, which will temporarily stop the strong bubble currents. The player should go right, then down past the Yellow Pipe, then continue right, where they will see a set of ascending pipes. The player can use the third pipe to enter a room filled with Bloopers. This room contains the second Star Coin. After this, the player should continue through the main part of the stage to find the exit pipe. Before exiting, the the player can go down near here to find the third Star Coin, where Bloopers will appear. The player should then use the exit pipe, which will lead Mario or Luigi to the Flagpole

Star Coins

 * Star Coin 1 - Before hitting the orange switch to stop the bubbles, the player can see the first Star Coin guarded by a roaming Blooper.
 * Star Coin 2 - After passing the Red Ring, head into the third pipe from the left. Avoid the Bloopers and Blooper Nannies and go to the lower right corner. Grab the Star Coin and head to the upper right corner to leave.
 * Star Coin 3 - Before leaving through the Warp Pipe to the flagpole, head to the bottom of the level. Get the Star Coin and quickly head back to the surface as four Bloopers will appear.

Enemies

 * Cheep-Cheep
 * Blooper
 * Blooper Baby
 * Blooper Nanny