World 1-5 is the sixth level of World 1 in New Super Mario Bros. 2, and it takes place underwater. This level features multiple types of Cheep Cheeps, such as Mega Cheep Cheeps and Spiny Cheep Cheeps.
The player starts in front of a pool of water with a gold pipe going through the water. The level starts of with several coin rings and a Cheep Cheep. Moving on, the player can see a Cheep Cheep ring enclosing some coins. Another ring of Cheep Cheeps enclose a ? Block containing a Fire Flower, the main power up of the level. A Spiny Cheep Cheep will then appear which will follow Mario upon spotting him. A Coin Roulette Block follows with a Mega Cheep Cheep, and more coin and Cheep Cheep rings. The player then reaches the checkpoint. Two ? Blocks are then found, the second containing a coin. Above the checkpoint, an area which contains a Cheep Cheep and coin ring enclosing a block that contains a 1-Up Mushroom, can be found. Two Cheep Cheep and coin rings will then be seen enclosing an ordinary Roulette Block. Two more coin rings appear, followed by a Spiny Cheep Cheep and a green pipe containing a stream of water. Above the area, before the latter enemies and coins appearing, an area is found where several coins lie on the ground. More Cheep Cheep and coin rings, and a lone Cheep Chomp follow. A P Switch (being blocked by the Cheep Chomp) can be activated to create blue coins in a circle which the player can collect. Mario will then see the green exit pipe back into land. Several stone platforms can help Mario reach the top of the flagpole.
- Star Coin 1: Not too far into the level, this Star Coin will be in plain sight. But you have to be careful, since there's a Spiny Cheep Cheep guarding it.
- Star Coin 2: After the only Mega Cheep Cheep in this level, go down the yellow Warp Pipe by going through the Cheep Cheep circle. This will lead you to a bonus area with some jets that push you down. Go through the jets, but be careful, since the jets push you to the bottom of the level, which will kill you. The Star Coin will be in the jets.
- Star Coin 3: After the Checkpoint, there will be a circle of Cheep Cheeps that go through a little hole then to the bottom of the level. Over these Cheep Cheeps will be a little crack that you can go through, and if you go through it, you'll find the Star Coin.