Level 4 shortly before the checkpoint.

World 1-4 is the fifth level and fourth regular level of World 1 of New Super Mario Bros. Wii. It is also the first underwater level of the game and the first level after a tower. It is unlocked by completing World 1-Tower and completing it unlocks a red toad house, the Enemy Course, World 1-5, and World 1-6.


At first, Mario starts on a platform above the level with 2 goombas, several blocks, and a pipe leading to the level. When Mario enters the pipe, it takes him underwater with many cheep-cheeps. At first, Mario encounters many sets of sub-species of Cheep-Cheeps. A few platforms above water before the checkpoint, a red ring can be found before a set of Cheep-Cheeps. After the checkpoint, the player will encounter a cheep-cheep, a current, and a star coin. In the next area, there is a group of Cheep-Cheeps, 2 currents, and the next star coin. Then, the player will pass by a clampy and see the next star coin guarded by an urchin and a current. At the end of the underwater area, Mario will pass by a Spiny Cheep-Cheep that will follow Mario. Then, there is a pipe that leads to the end of the level with the flagpole.

Star CoinsEdit

  • Star Coin 1: After the checkpoint, there is a Cheep-Cheep and a current guarding the star coin. Jump over the cheep-cheep or freeze it to obtain the coin.
  • Star Coin 2: When Mario sees the first group of Cheep-Cheeps after the checkpoint, Mario must freeze one of them and ride on the ice block to get pass the currents onto the star coin.
  • Star Coin 3: After seeing the first clampy, the coin is guarded by an urchin and a current. Mario must time it right and freeze the urchin to block the current so Mario can get the coin.


  • Cheep-Cheep
  • Deep-Cheep
  • Eep-Cheep
  • Goomba
  • Koopa Paratroopa
  • Mega Cheep-Cheep
  • Mega Deep-Cheep
  • Mega Eep-Cheep
  • Spiny Cheep-Cheep
  • Urchin