1. First Pink Coin
To get the first Pink Coin all you have to do is keep jumping toward the highest platform. It is best that you avoid getting inside any door since it may bring you to a different place and will make you miss the first Pink Coin.
2. Second Pink Coin
For the second Pink Coin, make your way to the lower level and then enter the first green door on the left hand side.
Once you’ve entered, you will exit another location. Hop on the springboard to activate all the coins above it. At the top most part of the now-revealed coins, is the second Pink Coin. To get the second Pink Coin, make your way to the other end of the screen and find a way to go back down to the spring board, without entering any kind of door.
Once you’ve made it to the spring board, make sure to align yourself with the second Pink Coin, and not straying away too much to the other side of the springboard.
3. Third Pink Coin
Getting the third Pink Coin is fairly easy. You won’t have to enter another door or dimension. The only thing you need to do is to get on the upper platform and get the third Pink Coin that’s floating around the upper platform to the left.
After getting the third Pink Coin, enter the second green door on the second platform to get the next Pink Coin.
4. Fourth Pink Coin
To get the fourth Pink Coin, make sure that you entered the second green door located on the second platform after getting the third Pink Coin.
Upon exiting the new world, you will find the fourth Pink Coin located right above two Surprise Question blocks. It’ll be easy to get but just make sure to avoid those pesky Boos or Boo Buddies.
5. Fifth Pink Coin
To get the fifth Pink Coin, all you have to do is get on the spring board and let Mario make a first pass through the row of coins at the top most area to reveal the rest of the coins, the fifth Pink Coin is among those coins.
Once it has been revealed, all you have to do is make another pass to claim the fifth and last Pink Coin.