Grinding-Stone Tower

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This article is about Grinding-Stone Tower, a level in New Super Mario Bros. U. For other uses, see Rock-Candy Mines-Tower.
Grinding-Stone Tower
NSMBU T-GrindingStoneTowerSE.Still004.jpg
World-Level World 6-Fort Icon.png
World Rock-Candy Mines
Game New Super Mario Bros. U
Time limit 500 seconds
Boss Boom Boom
Notes The last tower with Boom Boom as the boss.
<< List of levels >> >> **

Grinding-Stone Tower, or Rock-Candy Mines-Fort Icon.pngTower, is the first Tower of Rock-Candy Mines in New Super Mario Bros. U. This level is unlocked via completion of Porcupuffer Falls. Defeating the Boom Boom in this course unlocks a passage to Waddlewing's Nest and Light Blocks, Dark Tower, and the tower's secret exit unlocks Thrilling Spine Coaster.


The course's main obstacles are Warp Pipes that move left, right, up, and down and Grrrols, which return from Stoneslide Tower, and Dai Gorō.

A Boom Boom makes his species' last appearance as the boss of the tower. Kamek swoops in and cause the Boom Boom's arms to turn into wings, which allows him to fly and dive into the player.

Star Coins[edit]

  • Star Coin 1: A mini Warp Pipe, that leads to the area with the first Star Coin, is present at the beginning of the course, to the left. Mini Mario is required for this Star Coin.
  • Star Coin 2: The second Star Coin is hidden within a wall to the right, after a series of Grrrols.
  • Star Coin 3: Another mini Warp Pipe, that leads to the area with the third Star Coin, is present at the end of the course, to the right. As with the first Star Coin, Mini Mario is required to reach this Star Coin.

Secret Exit[edit]

Immediately after the third Star Coin is a Warp Pipe that leads to the secret exit. It opens the path to Thrilling Spine Coaster.


Names in other languages[edit]

Language Name Meaning
Japanese ごろごろゴローのとりで
Gorogoro Gorō no Toride
Rumbling Grrrol Fortress
Spanish (NOA) La Torre de Don Machucón Grrrol's Tower
Spanish (NOE) La terrible Torre Cróncher Terrible Grrrol Tower
French (NOE) Tour Mabroule Crazy Tower
Dutch Grrruwelijke Grrrol-toren Brrrutal Grrrol-tower
German Grrroll-Turm des Grauens Grrrol's terror tower
Italian Torre della Pietra stridente Rough Stone Tower
Portuguese (NOE) Torre Grrroda Grrrol Tower
Russian Башня шипокатов
Bashnya shipokatov
Grrrols castle