New Super Mario Bros. 2/World 1-3

This level can be approached two ways: going along the ground, or flying high into the air with Raccoon Mario. For the purposes of this guide, we'll first focus on the ground section and then on the aerial section.

Ground Section
Start by sliding down the hill to take out the two goombas. On the platform with the moving green blocks, hit the ? block to the right to get a Super Leaf. This will grant the ability to hover to the ground and attack adjacent foes. Using your new power, advance along the path, taking out goombas along the way, until you reach another ? block. Inside is another Super Leaf. Simply jump over the enemies in your path as you continue moving forward. Hop over the pits and the pipe that spawns goombas. Touch the midpoint flag to save your progress.

To the right, you will see two platforms sometimes connected by moving green blocks. You can hit the ? block above them to get another Super Leaf, but be careful not to fall down the pit below! Afterwards, you will see a pipe above that spawns goombas. Simply run past it. Go further right and you will see a brick wall. Smash it with your tail to uncover the way to the third and final star coin of the stage. (Note: If you have not been flying into the aerial sections, this will be your first Star Coin.)

Up ahead, there is a box that grants up to 50 coins. Try to get them, but not at the expense of your well-being. Go up the hill ahead, building momentum if you can, and jump on top of the flag pole.

Aerial Section
After the second Super Leaf power-up, clear the area to the right of enemies. Then, run from the far left to the far right. This will allow you to fly for a limited time. Atop the tree to the right is the first Star Coin of the level. You can then jump down to the right to get more coins and reach the midpoint flag.

After the checkpoint, fly over the tree that goombas are spawning out of a pipe in. You will reach an area where you can build up momentum to fly for a distance. Use it to grab the floating second star coin.