Piranha Gardens

Piranha Gardens, or Acorn Plains-4, is the fourth course of Acorn Plains in New Super Luigi U. It is unlocked by completing Rolling Yoshi Hills, and its own completion will unlock Lemmy's Lights-Out Castle.

Layout
This level mostly contains rising and falling rocky platforms. Piranha Plants are extremely common in the course, and a few Hammer Bros. appear as well.

Star Coins

 * Star Coin 1: Under the ground below the Red Ring.
 * Star Coin 2: Above two rows of Brick Blocks where a Hammer Bro. resides.
 * Star Coin 3: In a hidden area above a Piranha Plant.

Luigi Sightings
To the right of the second Star Coin, there is a topiary shaped as Luigi.

Enemies

 * Piranha Plants
 * Hammer Bros.
 * Koopa Troopas