Piranha Heights

Piranha Heights, or Acorn Plains-4, is the fourth level of Acorn Plains in New Super Luigi U. This level is unlocked by completing Rolling Yoshi Hills, and its own completion gives the player access to Lemmy's Lights-Out Castle.

Layout
The level begins on a Mushroom Platform above Piranha Plants and a Big Piranha Plant on moving Mushroom Platforms. Mushroom Platforms that move up and down must be crossed, and a Big Piranha Plant and a ? Block are found. Three Piranha Plants are found underneath a Warp Pipe. A Hidden Block containing a Super Acorn is found above the right side of the pipe. A stationary Mushroom Platform is found, with Piranha Plants on moving platforms below it. A ? Block containing either a Super Mushroom or an Ice Flower depending on the player's current form is found. Another Warp Pipe with Piranha Plants underneath it is found, above a Mushroom Platform with a Piranha Plant at the end. A Hidden Block containing a 1-Up Mushroom is found above the left side of the pipe. More moving Mushroom Platforms are found under Warp Pipes with Piranha Plants and a Big Piranha Plant underneath. After the last Mushroom Platform, the Goal Pole is found.

Star Coins

 * Star Coin 1: Near the start of level, The player must jump on a pipe, then in turn jump on the platform with the first Star Coin on it.
 * Star Coin 2: The player must manage to jump on a pipe to get the second Star Coin while carefully avoiding a Piranha Plant below the pipe.
 * Star Coin 3: The player must either Wall Jump or use the Flying Squirrel Suit to get to a Warp Pipe, then take the third Star Coin from a block structure made to look like an 8-bit Luigi. In New Super Mario Bros. U Deluxe, the player can also use Peachette to reach this Star Coin.

Luigi Sighting

 * In the room where the third Star Coin resides is a large image of 8-bit Luigi made of colored blocks.

Enemies

 * Piranha Plants
 * Big Piranha Plants

Names in other languages
Piranha-Gartenparty