Castles appear to be a fortress stacked upon a larger section. Smaller castle-like fortresses also appear at the end of every level (except for the fourth level of each of world, where a normal castle appears) and the beginning of each water or underground level, where Mario emerges from and enters a Warp Pipe. Defeating him allows the plumbers to finally rescue Princess Toadstool. Only in World 8's castle do Mario or Luigi confront the real Bowser himself. Inside the first seven castles, the player will have to pass Fire Bars, lava and other assorted dangers in a grey brick interior, leading up to an encounter with a fake Bowser defeating the impostor will allow Mario or Luigi to free a mushroom retainer, who informs them that their princess is in another castle.

The castles can be found at the end of each world, but can also be found at the start of most worlds, aside from World 1, the first level of the game, and World 5, which starts with a fortress instead of a castle. In Super Mario Bros., all castles are made of red bricks (except for the one in World 6-3, which is gray), and all have the same basic shape.

History Super Mario series Super Mario Bros.

1.6 Mario & Sonic at the Rio 2016 Olympic Games.

1.5.2 Paper Mario: The Thousand-Year Door.

1.4 Super Mario RPG: Legend of the Seven Stars.

1.3.1 Super Mario World 2: Yoshi's Island / Yoshi's Island: Super Mario Advance 3.

1.1.7 Super Mario 64 / Super Mario 64 DS.

1.1.6 Super Mario Land 2: 6 Golden Coins.

1.1.2 Super Mario Bros.: The Lost Levels.

Super mario bros 1 world 5 castle