1. First Purple Coin
Climb to the topmost level of the platforms and then jump under the single Surprise Question Block at the top to get the first Purple Coin.
2. Second Purple Coin
For the next coin, jump to the lowest level of the platforms and run straight until you find a group of Gold Coins with a Purple Coin among them.
3. Third Purple Coin
Get to the highest platform and then jump underneath a Surprise Question Block to get the third Purple Coin.
4. Fourth Purple Coin
After getting the third Purple Coin, move to the lower level of platforms and then jump to the platform with the group of coins sitting on top of a platform.
5. Fifth Purple Coin
After the fourth Purple Coin, get to the higher platforms and then jump underneath the Surprise Question Block to get the fifth Purple Coin.