Roy's Ironclad Castle

Roy's Ironclad Castle, or , is Rock-Candy Mines' castle in New Super Luigi U.

Layout
In this Castle, blocks made of metal serve as platforms, along with Conveyor Belts. Luigi must manage to not fall into the lava underneath, and can be pushed by the blocks on conveyor belts. It is notable that this castle has a shortcut, and can get the 3rd Star Coin, otherwise unaccessible, by taking the alternate route from Sumo Bro's Spinning Tower. Like in New Super Mario Bros. U, Roy Koopa is the boss.

Star Coins

 * 1st Star Coin: At the start of the level, Luigi must press the ? Switch to make the Iron blocks fall, along with the 1st Star Coin.
 * 2nd Star Coin: In a similar way to the 1st Star Coin, Luigi must press another ? Switch to make some iron blocks move, and get the Star Coin below quickly, before it becomes impossible to get.
 * 3rd Star Coin: This Star Coin is only accessible from the shortcut from Sumo Bro's Spinning Tower. Luigi must avoid the blocks on the conveyor belt, then grab the final star coin in the level.

Luigi Sightings
An 8-bit Luigi can be seen near the lava next to the second Star Coin.

Enemies

 * Bony Beetles
 * Dry Bones
 * Lava Bubbles
 * Bullet Bills
 * Boss: Roy Koopa