Rise of the Piranha Plants

Rise of the Piranha Plants, or Acorn Plains-5, is the fifth course of Acorn Plains in New Super Mario Bros. U. As the name suggests, this level is filled with different varieties of Piranha Plants. This course is unlocked by completing Yoshi Hill, and a Piranha Plant enemy course is unlocked upon its completion, in turn unlocking Lemmy's Swingback Castle.

Layout
This level begins near a Big Piranha Plant, two moving platforms, and a ? Block. A Koopa Troopa is found, followed by a Big Piranha Plant on a moving platform. A false wall next to the platform contains several coins. Another group of Big Piranha Plants and moving platforms is found, with a Hidden Block containing a 1-Up Mushroom against the wall under the last moving platform. The Checkpoint Flag soon follows. Another ? Block is found, along with some sloped platforms with Piranha Plants on the edges. A Hammer Bro is encountered on a group of blocks, next to a moving platform. Another Koopa Troopa is found, followed by an area with moving platforms over a pit. A Big Piranha Plant is found on the ceiling. More tilted platforms are found, with a Koopa Troopa and two Goombas nearby. A slope with Piranha Plants above it and two Goombas on it is found. Another Hammer Bro is encountered on top of a group of Brick Blocks, followed by another group of slanted platforms and the Goal Pole.

Star Coins

 * Star Coin 1: Not too far from the start of the level, the first Star Coin is found above a Big Piranha Plant. The player must either wait until the latter drops down, or simply defeat the Piranha Plant using the Fire Flower.
 * Star Coin 2: In a Warp Pipe guarded by a Big Piranha Plant, the player must use a Fire Flower to defeat it and the other Piranha Plants beyond the Warp Pipe. The Piranha Plants in the room containing the Star Coin may also be defeated by hitting the Hidden Block containing the Super Star and running through the Piranha Plants guarding the Star Coin.
 * Star Coin 3: Shortly after the second Star Coin, above a Hammer Bro.

Enemies

 * Koopa Troopas
 * Piranha Plants
 * Big Piranha Plants
 * Hammer Bros.
 * Goombas

Names in other languages
Piranha-Auf-und-Ab