As you approach Point 1, turn your back to the Boo to draw it away from the Star Coin. When you have the Boo where you want it, face it to prevent it from moving. When the platform starts shaking, jump up to grab the Star Coin.
Jump through the Red Ring at Point 2 to reveal the red coins below you. Jump back and forth between the platforms as they move past each of the red coins.
The second Star Coin is floating at Point 3. Hop on the platforms at the bottom of the room to ride up toward the ceiling, then leap up to grab the Star Coin.
There are three doors at the top of the room. To find the third Star Coin, enter the door near the right wall.
Jump on the platform and avoid the Boo as you ride around the room. When you reach the top of the room, jump up and grab the Star Coin.
To find the level’s secret exit, look for the passage at Point 5. Head through the opening to find a door behind some Blocks. If you have a Super Leaf, use Raccoon Mario to clear the Blocks from your path, then pass through the door. Grab the Goal Pole to reveal an alternate path to World 3-Castle.