Roy's Conveyor Castle

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This article is about Roy's Conveyor Castle, a level in New Super Mario Bros. U. For other uses, see Rock-Candy Mines-Castle.
Roy's Conveyor Castle
NSMBU Roy's Conveyor Castle Screenshot.png
World-Level World 6-Castle Icon.png
World Rock-Candy Mines
Game New Super Mario Bros. U
Time limit 500 seconds
Boss Roy Koopa
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Roy's Conveyor Castle, or Rock-Candy Mines-Castle Icon.pngCastle is the castle of Rock-Candy Mines in New Super Mario Bros. U. It is unlocked when Shifting-Floor Cave is completed and its own completion opens the path to Meringue Clouds and Land of the Flying Blocks. Additionally, the course can be entered via a ! Switch bridge to the back door of the castle. The boss of this stage is Roy Koopa.


This castle contains iron blocks that float on lava and Dry Bones. The player first rides an iron block across some hot lava and encounter a Dry Bones and a Bony Beetle. After that, they pass by another Bony Beetle and ride on some more iron blocks in order to avoid the lava. On the way, the player may collect some coins. After that, the player reaches an area where they must hit a ? Switch, thus causing a bunch of blocks to fall on top of the surface of the lava. The player can then get on top of them and make their way to the door. The player then enters the door, launches themselves out of the cannon and proceeds to fight Roy Koopa.

Star Coins[edit]

The first Star Coin
  • Star Coin 1: In order to get the first Star Coin, the player must allow the first iron block to fall on the surface of the lava and quickly dash towards the Star Coin.
  • Star Coin 2: While floating on an iron block in the middle of the level, the player must wall jump to a hidden Warp Pipe which leads to a hidden room. After entering the hidden room, the player must act quickly by dashing to the second Star Coin and back before an iron block falls.
  • Star Coin 3: Access to the third Star Coin requires the secret entrance into the back of this castle on the world map. Next, Mario must step on a ? Switch in order to cause a bunch of iron blocks to fall overhead. After that, Mario can now walk on top of the iron blocks and get the third Star Coin before the last iron block falls and blocks the path to the Star Coin.

Second entrance[edit]

The second entrance is automatically unlocked upon completion of Screwtop Tower. However, it will not be accessible under normal circumstances as all paths to the second entrance requires the use of the red Stretch Blocks to the right of Screwtop Tower, which is impossible to have been stretched when Mario is at Screwtop Tower because the south path leads to a blue switch which would have been automatically stepped on and the west path leads to blue Stretch Blocks which must have been used to cross the abyss, and there are no red switches nearby. To get to the second entrance, the player must do one of the following (in addition to completing Screwtop Tower):

  1. Complete Waddlewing's Nest and Thrilling Spine Coaster (which requires locating the secret exit in Grinding-Stone Tower). The player can then step on the red switch to the east of Waddlewing's Nest and use the secret path through Thrilling Spine Coaster to reach the now stretched-out red Stretch Blocks and the second entrance.
  2. Find the secret exit in Walking Piranha Plants!. This unlocks a path to a red switch and bypasses the blue switch between Walking Piranha Plants! and Screwtop Tower.


Names in other languages[edit]

Language Name Meaning
Japanese ロイのコンベアパニックの城
Roi no Konbea Panikku no Shiro
Roy's Conveyor Panic Castle
Spanish El Castillo Transportador de Roy Roy's Conveyor Castle
French Château Chenille de Roy Roy's Caterpillar Castle
Dutch Roys rolkasteel Roy's roll-castle
German Roys Gefahr-am-Fließband-Festung Roy's Danger-on-the-Conveyor-Belt-Castle
Italian Castello trasportatore di Roy Roy's conveyor castle
Portuguese (NOE) Castelo Rolante do Roy Roy's Treading Castle
Russian Рой и его замок с конвейерами
Roy i yego zamok s konveyyerami
Roy and his castle with conveyors
Korean 로이의 컨베이어 패닉 성
Roiui Keonbeieo Panik Seong
Roy's Conveyor Panic Castle

Level map[edit]

NSMBU Roy's Conveyor Castle Map.png