World 4-Castle - New Super Mario Bros
This is our Star Coin guide for World 4-Castle in New Super Mario Brothers Wii. We will also run you through the Wendy Koopa boss battle.
Star Coin #1 - You need to rotate yourself to the back side of the level via the flip switch. Then the second grate that goes through a middle metal block you can see the first Star Coin. You need to come at it from the right side.
Star Coin #2 - The second Star Coin is visible at the bottom of the level. Just wait until the two giant spikes retreat and jump down and grab it and get out.
Star Coin #3 - In the last area with a giant super long spike running along the bottom of the screen. At the end before entering the boss door head into the pipe.
Boss: Wendy Koopa - Kamek adds water to the battle. It fills the level and just dodge the magic until the water subsides and then hit Wendy as normal.