World 4-Tower (New Super Mario Bros. 2)
World 4-Tower is the fourth tower level in New Super Mario Bros. 2. The player has to maneuver Mario across a rising ice platform while avoiding enemies such as Bone Piranha Plants and Buzzy Beetles. This level contains a Secret Exit.
Mario begins on an ice platform which constantly moves up. He will first meet with a Bone Goomba. Many Bone Piranha Plants can be seen from pipes on the walls of the level. More Bone Goombas follow. A Bone Piranha Plant will then join the ride upwards. A Buzzy Beetle can then be found, followed by two Coin Roulette Blocks. Several rectangular Donut Blocks can be found. This is followed by two Bone Piranha Plants and the first Star Coin. More Donut Lifts can then be found, followed by a Buzzy Beetle. After that is the door leading to the next area, where the checkpoint and several rectangular ? Blocks can be found, one of which has a Fire Flower. The next area features another moving ice platform (this time moving faster), where another ? Block with a Fire Flower can be found. Two ! Pipes can be found thereafter. Exhausting the left pipe releases three 1-Up Mushrooms while exhausting the right one releases a Super Star. Another Buzzy Beetle can be found, followed by more Bone Piranha Plants and a Big Bone Piranha Plant. At the top is a door to the next area. Here, two rectangular ? Blocks can be found, one with a Fire Flower, and also a Pipe Cannon. On the way up are several pipes with Bone Piranha Plants and at the very top is the boss door. Here, there will be two wheels with four rectangular ? Blocks on each wheel with two Reznors on each wheel. Mario will then have to defeat all four Reznors to complete the level.
In the third room, where another ice platform can be found, Mario needs to enter a blue pipe infested with a Bone Piranha Plant which is differently colored from the other green pipes to the left of the Big Bone Piranha Plant. To make it easier, Fire Mario can exhaust the black pipe on the right wall earlier in the level to release a Star. Entering the pipe takes Mario to a small room with coins, Donut Lifts and another blue Warp Pipe on the ceiling. Entering that pipe takes Mario to the roof of the fortress, where several Donut Lifts and rectangular ones can be found, followed by the Goal Pole.