World 1-Castle (NSMB)
Template:Level World 1-Castle is the castle of the first world of New Super Mario Bros. It is the location of the game's first major boss fight.
Overview
The majority of the level consists of walking on tightropes over lava. Along the way, Mario encounters Podoboos and Dry Bones. There are also several platforms that move up and down, some of which sink into the lava. Eventually, Mario comes to safe ground. However, it is below a ceiling of spikes that slowly lower themselves down to the ground. Mario must jump to in-between gaps before he is crushed, and then get through a second lava-filled area before making it to the boss door.
Boss Fight
Bowser is, surprisingly, the boss of the first world. The fight is very similar to the ones from Super Mario Bros; the fight takes place on a small bridge above a pit of lava, with a Skull Switch at one end. Mario must get either under or over the Koopa King and hit the switch, which will collapse the bridge. (Intrestingly, if one attacks Bowser enough (jump, fireball...), he will fall in the lava, but the victory animation will not start until you trigger the skull switch, even though Bowser has already been defeated.) After the Koopa King's defeat, he is reduced to a skeleton (Dry Bowser), and is not seen again until World 8.