World 8-Bowser Castle (NSMB)

Template:Level This is the final level of New Super Mario Bros., being, obviously, Bowser's Castle. The Mario Bros, once inside, will encounter a massive amount of traps, including Rocket Engines and Thwomps. The level is the longest in the game, and some parts of it require pressing one of the many ? Switches to be found. These switches will flip the gravity of the castle upside down, and any enemy along with it. This action is required for getting to certain doors.

The second part of the castle is a long looping room, similar to the looping castles of 4-4 and 7-4 from Super Mario Bros. After that.... is the boss door.

Final Boss

Once inside the room, the player will encounter Bowser Jr. on a long bridge over a deep pit.

He will toss his father's bones into the couldron, thus reviving him, much to Peach's horror.

The duo will then fight Mario together, with Bowser Jr. using his usual shell-tossing tactic, and his father breathing flames behind him.

After the player defeats Bowser Jr, his father will up his attacks.

Mario must then run under one of Bowser's giant jumps and hit the Skull Switch at the end of the bridge, ending the fight and winning the game.