New Super Mario Bros. U: Superstar Road-9 -- Follow that Shell!

This is a nice bonus level. Here, you can potentially recoup some of the lives you lost in Superstar Road and the rest of the game. There are no power-ups in this level and you don't need them. You only need to deal with two Koopas to achieve your goals. The first Koopa you come across will help you get the first Star Coin. Use it to clear the brick blocks and Goombas blocking your path, then you can go and get it in between pieces of land. Go up the hill to find the next Koopa you have to deal with. Stomp it into its shell and kick it, then follow it. As long as you keep following it, it will do everything else for you. You don't have to actively chase it, but it has to be within the screen's range to rebound where you want it. It will loop around this first area a few times, so jump out of its way when it approaches. When it clears all the brick blocks on the right hill, you'll have to follow it up the hill when it returns. It will come across a flat platform with a brick block at the end. The brick block will give you a 1-up. It will ricochet off the brick block and go down some stairs, then go right and start climbing the vertical area. Follow it to the right, up a hill with Goombas, and it will go into an area with the second Star Coin. This can be tricky. There are a set of four brick block and one of the middle ones has a P-Switch. Make the P-Switch appear, then wait until the shell drops to the level above the level with the Star Coin to hit it. Timing is crucial here. If timed correctly, it will break ove the brick blocks in front of the Star Coin and get the Star Coin for you. Keep following it down and it will hit a brick block at the end before falling into the void. The brick block has a vine that allows you to reach the third Star Coin above a high platform. From there, jump to the flagpole. Because you followed the same shell the entire way without stopping up, you will accumulate a lot of 1-ups from killing enemies. I got over 30 in one try.

Once you complete the level with all of the Star Coins, a fanfare will play and you'll get a message: "You've collected all the Star Coins! Congratulations!"

And with that, we've completed New Super Mario Bros. U. It was a fun and challenging game. I bet you can guess what I'll be playing next.