World 7-2 (New Super Mario Bros.)
From the Super Mario Wiki
This level is a wrap-around level. At the very beginning of the level, the player goes into a Warp Pipe. The Pipe takes Mario into an area with a rising platform and many Koopa Paratroopas. The rising platform will take Mario between two brick walls, where he must avoid two Koopa Paratroopas. A Red Ring can be found to the left. The player will then see a platform with five Koopa Troopas, and a brick platform that has a ? Block over it. Then, there is a huge wall with a few Koopa Paratroopas flying around. There are two Brick Blocks and two ? Blocks. After that, Mario should walk between a wall with many Koopa Paratroopas. There will be a Pipe to the right. The player must enter the pipe, and it will lead to two Koopa Paratroopas and the Goal Pole.