1. First Pink Coin

Just continue running forward and just jump toward the first row of coins wherein the first Pink coin is located.
2. Second Pink Coin

To get the second Pink coin, hop on a pair of springboard with a square of bricks resting above it. The second Pink coin is sitting right in the middle of the square of bricks.
3. Third Pink Coin

The third Pink coin can be found in a row of Coins after a pair of inclined slopes. At the end of the second slope, be sure to make a high jump to get the third Pink Coin
4. Fourth Pink Coin

After a couple of inclined slopes, get on the next springboard with a column of bricks on top of it. Inside the column of bricks is the fourth Pink Coin.
5. Fifth Pink Coin

After using the blue cannon that will blast you toward a row of Blue coins, make a high jump on the edge of the slope that follows to get the fifth and last Pink Coin.