Bowser's Castle Hangout

Bowser's Castle Hangout (or World 1-4) is the fourth and final level of World 1 and the fourth level overall in Super Mario Run. It is also the last free level in the game, although originally only 20 seconds of this level could be played without paying for the full game. The level was later made fully playable in the version 2.0.0 update released on March 22, 2017, though only by either collecting 100 Toads in Toad Rally or collecting all of the Pink Coins in the previous three levels before paying for the full game.

Pink Coins
The level immediately starts out with some back arrow blocks leading to a Super Mushroom. Jumping off that platform leads to a ceiling that the player can climb to the first Pink Coin. Upon exiting that area and dropping down, there is another climbable ceiling leading to the second Pink Coin. Upon exiting that sub-area, there is a row of ? Blocks and Brick Blocks that the player can get on via the nearby back arrow blocks, then use to jump onto another climbable ceiling to a platform surrounded by Lava Bubbles to get to the third Pink Coin. Upon dropping down, the player must jump onto a row of back arrow blocks, then use them to jump onto yet another climbable ceiling to a platform with the fourth Pink Coin. Immediately afterwards, the player must wall jump between two walls, then use yet still another climbable ceiling to reach the platform with the fifth and final Pink Coin. The player must then utilize a Pause Block to get past the Lava Bubbles, leading to the Fake Bowser fight. The player must wait at the next Pause Block until the Fake Bowser jumps to hit an ax, completing the level.

Purple Coins
The level immediately starts out with some back arrow blocks leading to the first Purple Coin. Jumping off that platform leads to a ceiling that the player can climb to an elevated platform with a Dry Bones. Upon exiting that area and jumping up, there is a Dry Bones that the player can jump on to get the second Purple Coin. Upon exiting that sub-area, the player must pass two Pause Blocks and then jump to reach the third Purple Coin, guarded by Lava Bubbles. Immediately afterward, the player must jump onto a row of back arrow blocks, then use them to jump onto yet another climbable ceiling to a row of Brick Blocks, then jump to another platform with the fourth Purple Coin. Immediately afterwards, the player must jump where a ↗ arrow block is shown to get the fifth and final Purple Coin. There is another climbable wall the player can reach up ahead to reach a platform for which to drop down from. The player must then utilize a Pause Block to get past the Lava Bubbles, leading to the Fake Bowser fight. The player must wait at the next Pause Block until the Fake Bowser jumps to hit an ax, completing the level.

Black Coins
The level immediately starts out with some back arrow blocks leading to a Super Mushroom. The player should then immediately jump up to reach a Brick Block, allowing access to the first Black Coin. Jumping off the Brick Block leads to a platform, which in turn leads to a ceiling that the player can climb to an elevated platform. Upon exiting that area and jumping up, there is a group of Dry Bones; jumping on the third one will allow access to the second Black Coin. Upon exiting that sub-area, there is a row of ? Blocks and Brick Blocks that the player can get on via the nearby back arrow blocks, then use to jump onto another climbable ceiling to a platform surrounded by Lava Bubbles to get to the Brick Block containing the third Black Coin. Upon dropping down, the player must jump onto a row of back arrow blocks, then use them to jump onto yet another climbable ceiling at the farthest point possible to reach the fourth Black Coin. After passing three more Dry Bones, the player must utilize more back arrow blocks to wall jump and reach the fifth and final Black Coin. The player must then utilize a Pause Block to get past the Lava Bubbles, leading to the Fake Bowser fight. The player must wait at the next Pause Block until the Fake Bowser jumps to hit an ax, completing the level.

Enemies

 * Dry Bones
 * Lava Bubbles
 * Fake Bowser (boss)

Names in other languages
Appesi nel castello di Bowser