World 5-Castle (New Super Mario Bros. 2)

This stage contains many Cannons.

At the Boss Room, Mario or Luigi must use the cannon. Then when they fight Ludwig, he hovers to a rope. Whichever rope he goes to, the player must hit him with the cannon pointing at that rope. He must be hit 3 times to be defeated.

Star Coins

 * Star Coin 1: Not too far before the checkpoint, there's a hidden red pipe that can be reached with hidden blocks. The red pipe takes the player directly to the star coin.
 * Star Coin 2: Immediately after the checkpoint, The star coin is floating over the lava. The player must wait for the grating to rise from the lava to get it.
 * Star Coin 3: Once the vertical rectangular grating sinks into the lava, the player should wait until they are able to grab the third star coin.