Painted Swampland, or Soda Jungle-4, is the fourth level of Soda Jungle in New Super Mario Bros. U. It is located in the haunted sub-area of Soda Jungle. Most notably, this course is an outside ghost course with the design and art style inspired by Vincent van Gogh's The Starry Night.
Completing the course normally makes a path that leads back to the first point after Which-Way Labyrinth, but completing the level with its secret exit reveals the true path through Soda Jungle.
The level begins on a platform with a Boo nearby, with Poisoned Water filling the bottom of the area. A ? Block containing a power-up is found, along with Warp Pipes that act as platforms in the poison. The third Warp Pipe sinks when it is stepped on. Some more Boos are found, along with Warp Pipes of various colors, some of which sink when stepped on. A section of the ground with a ? Block containing a power-up is found, and is followed by a section with more Warp Pipes acting as platforms. Piranha Plants can be found in yellow Warp Pipes. The Checkpoint Flag is then found, with a ? Block containing a 1-Up Mushroom hidden in a wall. A section of blue Warp Pipes with Circling Boo Buddies is then found. A Red Ring is found above some red Warp Pipes, and a few more Warp Pipes are found leading to the Goal Pole. In the background around the end of the level, an image of Bowser with no pupils is present.
- Star Coin 1: In the course's second yellow Warp Pipe, the player can find the first Star Coin surrounded by Circling Boo Buddies.
- Star Coin 2: Before the Checkpoint Flag, the player must get a running start off of the closest slanted pipe to reach the second Star Coin.
- Star Coin 3: After the Checkpoint Flag, the third Star Coin is found among a group of Circling Boo Buddies.
Unlike most secret exits in the game, this course's secret exit is required to continue through Soda Jungle. After a series of red pipes, there's a green slanted one leading to a wall. The wall contains a Warp Pipe that leads to the course's secret exit.
Painted Swampland is the tenth property on the game board in Monopoly Gamer. It is one of two properties in the Red Color Set (along with Soda Jungle).