World 6-Tower (New Super Mario Bros. 2)

 is the tower of World 6 in New Super Mario Bros. 2. It primarily features dodging Rocket Engines, some of which are blocks that can be temporarily deactivated by hitting them. It is the last Tower in the game, as World Star does not feature one.

Layout
Mario begins the level in between two Burners that can be deactivated by hitting them. A Dry Bones and a ? Block can be found on either side of the area. Two more platforms with Dry Bones on them can be found above Mario, along with two more Burners. A group of three Burners that can be deactivating is found, along with multiple orange platforms that Mario must climb. More Burners are found, along with a lift on a track. A Dry Bones is found on top of a long ? Block. Mario must avoid Burners moving on tracks, and jump onto a second lift. The Checkpoint Flag is then found. Two lifts are found on either side of the area, with a four-sided Burner in the middle. Another lift is found above the Burner, and Mario must ride while avoiding Burners. At the top of the area, the boss door and a Big Dry Bones are found. Entering the boss door leads to a battle against four Reznor.

Star Coins

 * Star Coin 1: The first Star Coin is in plain sight, but Mario or Luigi can't reach it unless they temporarily turn off the Rocket Engine that is blocking it.
 * Star Coin 2: The player must enter the door left of the Checkpoint Flag (and turn off the Rocket Engine). The door leads to a large room infested with Rocket Engines. The second Star Coin is at the very top of the room.
 * Star Coin 3: Just before Mario or Luigi fight the Reznor, there is a green pipe that is blocked by a Rocket Engine. After deactivating it, the green pipe leads the player to a room with circling Rocket Engines. The player must climb the Rocket Engines to find the third Star Coin.

Enemies

 * Dry Bones
 * Big Dry Bones
 * Rocket Engines
 * Reznor (boss)