Smashing-Stone Tower

Smashing-Stone Tower, or  is the tower level of Rock-Candy Mines in New Super Luigi U. It is unlocked when Porcupuffer Cavern is completed, and its completion unlocks Spike's Seesaws and Light-Up-Lift Tower.

Layout
The level starts in a tower with Grrrols and multiple platforms. At one segment of the level, the player must let the Grrrols destroy some Brick Blocks to open up the rest of the level. A Mega Grrrol destroys another wall of Brick Blocks which opens up the boss door where Boom Boom awaits. He must be hit three times in order to be defeated.

Secret Exit
The secret exit is found by entering a pipe near the end of the level. Once there, the player must perform a Ground Pound in the slanted area. The secret exit leads to Spine Coaster Stowaways.

Star Coins

 * Star Coin 1: Between two Grrrol dispensers.
 * Star Coin 2: In a secret area behind the Luigi face.
 * Star Coin 3: Just above the secret exit, two Brick Blocks guard it.

Enemies

 * Grrrols
 * Mega Grrrol
 * Boom Boom (boss)

Names in other languages
Gefahr im Grrroll-Turm des Grauens