To reveal the first Star Coin, jump onto the Bill Blaster Turret at Point 1. Wait for a Bullet Bill to emerge, then stomp the enemy and bounce into position. When you land, the Star Coin appears to the right.
The second Star Coin is located in a hidden area. To find it, enter the green pipe at Point 2.
After the pipe launches you to the secret area, jump along the Caterpillar Blocks to the right. The Star Coin is floating just past the Bill Blaster Turret.
When you pass through the Red Ring at Point 3, eight red coins appear in the area. As you collect them, watch out for the Bullet Bills that emerge from the nearby Bill Blaster Turrets.
When you reach the Blocks at Point 4, a Banzai Bill approaches from the right. Stomp this oversized enemy, then enter the red pipe to find a hidden area containing a Gold Ring.
It takes precision timing to collect the Star Coin at Point 5. Slip between the Banzai Bills as they fly through the area, then drop down and collect the Star Coin just as a Bullet Bill passes under it. Bounce off of the Bullet Bill, then hurry out of the Banzai Bills’ flight path.