Super Mario Bros. 3/World 2 Part 2

Quicksand

 * Present throughout this level is the Angry Sun. At the beginning it just hovers in the corner, but halfway through the level, it will start chasing you. You'll have to avoid it until you come across the goal card.
 * Expert players can use a Koopa shell to take out the Angry Sun. You can use the brick blocks on the ground to keep the Koopa shell bouncing back and forth.
 * The large quicksand pit at the beginning requires a very precise jump to not fall into it.
 * The tornado in this level just pushes you backward if you run into it. To pass it, you must jump beforehand so it will launch you way upward.

2-4

 * If you're Raccoon Mario, fly straight up through the brick blocks. You'll get to the top of the level, which is very straightforward and full of coins.
 * The first pit is guarded by two Koopa Troopas. First jump on top of the ? block, and then stomp the first Koopa Troopa. From here, jump onto the ? block over the pit, and onto the second Koopa Troopa. Kick its shell to the left to retrieve the raccoon leaf from the block.
 * Stomp on the next Koopa Troopa you see and take its shell. Run forward and knock out the Boomerang Bro you see there with your shell. The block on the ground contains another leaf.
 * When you see the next red Koopa Troopa, do the same to the Boomerang Bro on the other side of the pit.
 * Behind the Boomerang Bro, cross the pit to find another block with a leaf inside.
 * After the Piranha Plant, there's another Boomerang Bro waiting for you. This time, there's no easy way to kill it, and because it has the height advantage, you'll need good luck to make it past him.
 * If you're coming from the top, you'll see several note blocks leading down. The last one contains yet another leaf.
 * At the goal card there's another Boomerang Bro waiting, jump over him and collect the card to defeat him.

2-5

 * Right at the beginning you'll meet Chain Chomps. These enemies are tied to a block and will charge at you (the chain will detach if you wait long enough). It's best to avoid them as they can't be killed at the moment and are very unpredictable.
 * The second block at the beginning contains a leaf. Due to the Chain Chomp however it is very risky to collect, you may want to skip it.
 * At the orange blocks, jump up to the second one from the bottom to avoid the Chain Chomp.
 * After the blocks you'll see a Koopa Troopa on a platform made of brick blocks. Stomp on it and kick its shell against the leftmost brick block. You can now drop down and bump against the wooden block at the bottom, awarding you another leaf.
 * Behind the pit, watch out for the Chain Chomp. It can reach you while climbing up the orange structure.
 * After a while, you should see some brick blocks at the bottom and after that a Koopa Troopa. Stomp on it, then take its shell and kick it into the right path. It will reveal a vine, climb it up and follow the cloud platforms at the top to get to a bonus area (see below).
 * At the end of the level, a Chain Chomp is right below the goal card. Collect the card and the Chain Chomp will die.

Bonus area

 * This area contains some coins and many brick blocks. In the brick block structure, the bottom one in the middle contains a P-Switch, which turns all the brick blocks into coins.
 * The bottom-rightmost brick block contains a raccoon leaf.
 * Exit the bonus area to land on a structure in the air. Walk to the right and jump at the rightmost block for another leaf.

Pyramid

 * At the beginning, you have no choice but to enter the door to get inside the pyramid.
 * Inside the pyramid, watch out for the Buzzy Beetle walking down the steps. At the top, you can find a raccoon leaf inside a ? block.
 * At this point, there is a small maze. At each path there are brick blocks, if you are Raccoon Mario you can use your tail, otherwise you must kick a Buzzy Beetle shell against the brick blocks to destroy them. As big Mario, you must then run and duck to get through.
 * The correct path is the middle path, the others just lead to a dead end. At the Piranha Plant, jump up and to the left, then go up and to the right again.
 * After that, you should see a pipe. To reach it, jump around to find a hidden block. The pipe leads to a bonus area (see below).
 * Behind the pipe, there's a slope. You can slide down if you want, but watch out, the slope leads right into a pit. Jump off before you fall in.
 * Near the end you'll see Buzzy Beetles walking on the ceiling. When you come near them they drop down and spin towards you. You can stop the shells by jumping on them just like any other shell.
 * The pipe at the end leads to the ending area. Watch out for the Boomerang Bro that awaits you there!

Bonus area

 * This bonus area has alternating lines of coins and brick blocks. The brick block at the very bottom has a P-Switch, which effectively switches them around.
 * At the very top, off the visible screen you can find a block with a 1-up mushroom.
 * Once you're done, enter the pipe again. You'll come out after the big slope.

Airship

 * After the cutscene where Mario discovers that the King has been transformed into a spider, Mario jumps on the airship to fight the boss of this world.
 * This is another autoscroller. When you see the first two Bullet Bill cannons, jump on them and then on the roof.
 * About halfway through there will be a single block with a Fire Flower inside.
 * At the end you'll discover a new enemy, Rocky Wrenches. They throw small wrenches at you. While you can stomp on them to kill them, they just regenerate, so don't bother.
 * After the Rocky Wrenches, use the Bullet Bill cannons again as a staircase to the pipe.
 * The pipe takes you to Morton Koopa Jr. He behaves just like his brother from World 1. Either stomp on him three times or feed him 10 fireballs to defeat him, then take the wand to get to the next world. Princess Toadstool gives you a Jugem's Cloud for beating this world.