New Super Mario Bros. U: Soda Jungle-4 -- Painted Swampland

From the background to the pipes, everything here was inspired by Vincent Van Gogh's Starry Night. There's purple water you'll have to contend with, as well as Piranha Plants and Boos. The Fire Flower will help with the Piranha Plants. There are pipes in the water and some of them will tilt or sink when you stand on them. The brick block near a red pipe has a Starman. Carefully run around and take a yellow pipe down for the first Star Coin. It's in the center of a ring of Boos, so time your jump when the gap in the ring is on your side. Once you return to the main level, you'll find the second Star Coin over a green pipe that isn't tilted. It will sink when you stand on it, so jump quickly to get the Star Coin. Soon after is the midpoint. The third Star Coin is in the middle of another ring of Boos over a blue pipe. Stand on that blue pipe as it moves around, then time your jump to get the Star Coin and get out of the ring. On land, there is a sign with an arrow pointing down. Pound the area nearby to find a block with an Acorn Mushroom. There are Red Coins ahead. At the end of the trail of Red Coins is more land. Use the green pipe to go under the land to reach a pipe, which takes you to the red goal. This opens the path to the courtyard of Boos, which lets you out of this part of the jungle. If you pass the way to the red goal, you'll come across moving pipes that lead to the regular goal. This opens the path out of this part of the jungle, through the courtyard of Boos, to Soda Jungle-6 and -7. (To get through the courtyard, memorize which traps doors the Boos go into, then avoid them on the path out of there.)