Grinding-Stone Tower (2025)

This article is about Grinding-Stone Tower, a level in New Super Mario Bros. U. For its New Super Luigi U counterpart, see Smashing-Stone Tower.
Level
Grinding-Stone Tower
Level codeWorld 6-Tower
WorldRock-Candy Mines
GameNew Super Mario Bros. U (Deluxe)
Primary power-upIce Flower
Time limit500 seconds
BossBoom Boom
<< Directory of levels >> >> **

Grinding-Stone Tower, or Rock-Candy Mines-Tower, is the first Tower of Rock-Candy Mines in New Super Mario Bros. U. This level is unlocked via completion of Porcupuffer Falls. Defeating 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.

Contents

  • 1 Layout
  • 2 Star Coins
  • 3 Secret exit
  • 4 Enemies
  • 5 Names in other languages
  • 6 Level map

Layout[edit]

Mario in the battle with winged Boom Boom.

The level begins below a platform with a ? Block and a nearby pipe spawning Grrrols. A Bony Beetle is found, along with two Warp Pipes that move upwards and downwards, allowing the player to reach the next platform. More Grrrols are spawned nearby, and a platform with a Bony Beetle and two Brick Blocks is found. A moving Warp Pipe is found, and a hidden opening next to it allows the player to reach a? Block containing a Mini Mushroom. An opening containing coins is found, allowing the player to avoid nearby Grrrols. After passing by the Grrrols, another sloped platform with a Bony Beetle on it is found, followed by two moving Warp Pipes. A series of platforms with Mega Grrrols on them is found, leading to the Checkpoint Flag. A group of Warp Pipes is found, with a? Block above it and Grrrols spawning from the right. More sloped platforms and Grrrols are found, and a hidden Red Ring is found in a wall. After another platform, two? Blocks are found, followed by multiple moving Warp Pipes acting as platforms and Grrrols. Two Mega Grrrols are found, followed by a platform with a Bony Beetle and the boss door on it.

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

Star Coins[edit]

ImageLocation
A small 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.
The second Star Coin is hidden within a wall to the right, after a series of Grrrols and just before the Checkpoint Flag.
Another small pipe which 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]

The small pipe leading to the third Star Coin and the secret exit

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

Enemies[edit]

ImageNameCount
Grrrol(infinitely spawned)
Mega Grrrol12
Bony Beetle4
Boom Boom(boss)

Names in other languages[edit]

LanguageNameMeaningNotes
Japaneseごろごろゴローのとりで[?]
Gorogoro Gorō no Toride
Fortress of Rolling Grrrols
Chinese滚动刺滚轮的堡垒 (Simplified)
滾動刺滾輪的堡壘 (Traditional)
[?]

Gǔndòng Cì Gǔnlún de Bǎolěi
Fortress of Rolling Grrrols
DutchGrrruwelijke Grrrol-toren[?]Brrrutal Grrrol-tower
French (NOE)Tour Mabroule[?]Crazy Tower
GermanGrrroll-Turm des Grauens[?]Grrrol's terror tower
ItalianTorre della Pietra stridente[?]Rough Stone Tower
Korean데굴데굴 데구르 요새[?]
Deguldegul Degureu Yosae
Rolling Grrrol Fortress
PortugueseTorre Grrroda[?]Grrrol Tower
RussianБашня шипокатов[?]
Bashnya shipokatov
Grrrols castle
Spanish (NOA)La Torre de Don Machucón[?]Grrrol's Tower
Spanish (NOE)La terrible Torre Cróncher[?]Terrible Grrrol Tower

Level map[edit]

[Edit]

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Sparkling WatersWaterspout BeachTropical RefresherGiant Skewer TowerHaunted ShipwreckAbove the Cheep Cheep SeasUrchin ShoalsDragoneel's Undersea GrottoLarry's Torpedo CastleSkyward Stalk
Frosted GlacierSpinning-Star SkyCooligan FieldsFreezing-Rain TowerPrickly Goombas!Scaling the MountainsideIcicle CavernsSwaying Ghost HouseWendy's Shifting CastleFliprus Lake
Soda JungleThe Mighty CannonshipJungle of the GiantsBridge over Poisoned WatersBramball WoodsSnake Block TowerWhich-Way LabyrinthPainted SwamplandDeepsea RuinsSeesaw BridgeWiggler StampedeIggy's Volcanic CastleFlight of the Para-Beetles
Rock-Candy MinesFuzzy ClifftopPorcupuffer FallsGrinding-Stone TowerWaddlewing's NestLight Blocks, Dark TowerWalking Piranha Plants!Thrilling Spine CoasterScrewtop TowerShifting-Floor CaveRoy's Conveyor Castle
Meringue CloudsLand of Flying BlocksSeesaw ShroomsSwitchback HillSlide Lift TowerSpinning Spirit HouseBouncy Cloud BoomerangsA Quick Dip in the SkySnaking above Mist ValleyLudwig's Clockwork CastleBoarding the Airship
Peach's CastleMeteor MoatMagma-River CruiseRising Tides of LavaFirefall CliffsRed-Hot Elevator RideThe Final Battle
Superstar RoadSpine-Tingling Spine CoasterRun for ItSwim for Your Life!Hammerswing CavernsSpinning Platforms of DoomFire Bar CliffsLakitu! Lakitu! Lakitu!Pendulum CastleFollow That Shell!
Coin CoursesWorld Coin-1World Coin-2World Coin-3World Coin-4World Coin-5World Coin-6World Coin-7World Coin-8

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Grinding-Stone Tower (2025)
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