New Super Mario Bros. U: Rock-Candy Mines- Fort 2 -- Screwtop Tower

Screwtops make a return. Stand on the screw and spin to make the platform move. Take the first screwtop to the pipe. This takes you to the main tower, which has more screwtops and orange platforms Mario can only bump from below. He can't go through them. You'll have to go around to stand on them. There are firebars in this level you'll have to dodge while standing on the screwtops. Take the yellow pipe to an area with the first Star Coin. Use the POW Block to get it. Up ahead are Sumo Bros, but these ones shoot down lightning when they stomp. They have spikes on their heads, so you'll have to bump the orange platforms below them to get rid of them. Keep going up to reach the midpoint. The second Star Coin is high over the next Sumo Bro. Use the screwtop and dodge the firebar to get it. Bounce from the noteblocks and go up to reach the Red Coin Ring near the top of the level. You'll have to deal with L-shaped firebars to get them. There is a Sumo Bro next to the boss door. Get rid of it, then jump above the orange platform for some invisible blocks. There are three tiers of invisible blocks over the platform. The top tier will allow you to reach the third Star Coin. Through the boss door, Kamek will make a Sumo Bro a giant Sumo Bro. It will jump on some of the orange platforms. This battle is a little tricky. You'll have to bump the Sumo Bro from below, and knock it down to a level you can reach, then stomp it. You'll have to stomp it before it gets back up. Try bumping it to the floor, or one of the lower orange platforms, but you'll have to run around to jump up to stomp it. You can bump it from below as many times as you need. Stomp it three times to win. This opens the path to Rock-Candy Mines-7.