The second way to do it is to go to the right, jump, go to the left, jump, follow right, go down, and then fall on the small platform under the top platform to get it. The first way is to defeat the Super Piranha Plant, which can only be done if Mario is in his Fire Mario form.

Star Coin 2 - The second Star Coin can be accessed by the player in two different ways.

The player will have to Wall Jump to reach the platform where it is located.

Star Coin 1 - The first Star Coin is located in the very beginning of the sewers, towards the right.

Taking the exit to the right will lead Mario to the red-flag exit and access to World 2-A. They will need to hit another switch, which will raise the water level once more, which will last for only a short period of time, as the water level will go back down once it reaches the top. When the player hits the ? Switch, they will need to swim upwards into another room filled with coins and Dash Coins. The player can use the spring at the end of the level to get a 1-Up Mushroom at the top of the pole. Mario can find the normal exit to the right, but before he can reach it, Mario should press a ! Switch to active some blocks in order to reach the exit. The top path of the level contains a puzzle, where the third Star Coin can be found to the left. After passing the Super Piranha Plant the player can go to the right path, where Mario can find two ? Blocks, one with a coin inside and the other with a power-up inside.

If the player goes to the level's normal exit, the player will find a Super Piranha Plant. Pressing the switch will cause the water level go up in order to reach the platform, or the red-flag exit that is located at the top. The player will not be able to reach the big platform to the right, because they need to press a ? Switch first. In the left corner, he can find a ? Block with a coin inside, and to the left of the block is an Invisible Block containing a 1-Up Mushroom inside it.

After crossing the puzzle, Mario will cross the midway point and then he will have to slide in order to proceed.

New super mario bros world 3