World 7 (New Super Mario Bros.)

World 7 is a New Super Mario Bros. world made up of clouds. The player get there by beating Petey Piranha (boss of World 5 with a Mini Mushroom, or using the Warp Cannon in World 4. It is the first place Banzai Bill appears (in world order).

The boss, a Dark Lakitu named Lakithunder, is speculated to have caused the attack on Princess Peach's castle in the intro movie.

7-1
The player will start on a hill. The first ? block on this level is a coin. The player jumps on a bar to go on a bar on part of 7-1.

7-Ghost House
The player must step on a ?-Switch that will make six doors appear. The correct door is bottom-right gut the player can choose others to find certain star coins.

Enemies Introduced

 * Banzai Bill
 * Flame Chomp
 * Squiggler
 * Flamethrower