New Super Mario Bros.: 5-A

This level is has more unusual mushroom platforms. These blue mushrooms will  expand and cntract periodically, allowing us to reach certain areas. Before we reach the midpoint, there is a Red Coin Ring. The first Star Coin is under a ledge that we can reach when a blue mushroom expands under it. There is a ! Switch to allow us to get back up. Nearby is a brick block containing a vine that leads to Coin Heaven. Hit the P-Switch, then use the spring to reach the second Star Coin. We then drop back down to the main level. The third Star Coin is over a blue mushroom. We reach the flagpole and a path to the fort opens up.

New Super Mario Bros.: 5-1

World 5 is an ice world, so we have to deal with slippery surfaces and deep snow. Here, we'll find Snow Spikes creating snowballs that they throw. The snowballs take out enemies and increase in size, and have the potential to hurt Mario. There are trees here with snow covered branches. If the branch shakes, the snow will fall, possibly burying Mario if he's in the way. In some parts of the level are patches of deep snow, which it's difficult to jump and dodge enemy attacks. You'll come across some item blocks high up. Bounce off of them to reach the first Star Coin. Soon after, you'll reach the midpoint. You can get the second Star Coin by boucing off a Paratroopa or the floating item block. Soon after, you'll see a Snow Spike on a ledge to the right of a yellow block with a face. Hitting the block will stack more blocks on top of it temporarily. It will block the snowballs. To get past it, you have to kill the Snow Spike. You'll use a similar block to reach the third Star Coin. The flagpole is at the end. The path forks to 5-2 or 5-A.

New Super Mario Bros.: 4-Castle

It's time for another castle! This one has pendulums with platforms with Dry Bones that we can walk on. The pendulums will get very close to each other, so just wait instead of just jumping whenever. If you run up the third pendulum, using it as a ramp, you can reach the first Star Coin. Next are a few large Thwomps. The first one is over the second Star Coin, which is under some stone blocks. Approach the Thwomp to make it drop down and crush each row of blocks. Then drop down to get it. Then run under a series of Thwomps to reach the midpoint. From here until the boss door are pendulums. Under the first from the midpoint is the third Star Coin, so drop down to get it. The boss is a giant Goomba. You can use fireballs or hit the ? Switch to make green springing platforms appear for a limited time. The platforms will rise up to the level of the top of the Goomba when you stand on them. The ? Switch will still be available after the platforms disappear, so you can get the platforms any time. Ground pound the giant Goomba three times to defeat it. Bowser Jr. takes Princess Peach off to the fort of World 5.

New Super Mario Bros.: 4-6

It's another purple water level. To help us cross the water, Dorrie returns. She will duck under platforms, so you may have to climb on them to avoid being pushed off into the water. There's a Red Coin ring near the platform with the first Star Coin. The Red Coins go under the platform as well as over, so you'll have to double back to get them all. You'll have to go over the platform with the Piranha Plants. The second Star Coin is past the P-Switch, which you must use to reach it. It will turn coins into brick blocks, giving you platforms. The ! Switch will allow you to go up a green pipe, where you'll find the third Star Coin in a coin formation after you slide down. There is a 1-up near the pipe. You'll end up near the pipe to the flagpole. The path to the castle will open up.

New Super Mario Bros.: 4-5

We take a pipe to go underground. We land on a mushroom and find the path blocked by some stone blocks shaped like stairs. Above them is a pipe with an endless supply of Bob-ombs so you can blow up the blocks. We'll be doing a lot of that here. We pass the midpoint without finding any Star Coins. The first Star Coin is encased in stone blocks, so have a Bob-omb destroy the blocks so you can reach it. Be careful not to blow up too much of the floor. Next is a series of drawbridges. The second Star Coin is surrounded by brick blocks above the second drawbridge, so hit the brick block under the Bob-omb walking around, and let it explode some blocks. Then use the drawbridge as a ramp and jump up through the gap to get it. Under one of the later drawbridges is a pipe covered with stone blocks. Carefully drop a Bob-omb down there, then enter the pipe. It will take you to the third Star Coin. In the last part of the level, there will be Spinies crawling on the ceiling, so watch out for them. At the end is a pipe to the flagpole, which opens the way to 4-6.

New Super Mario Bros.: 4-Ghost House

This Ghost House can be a little complicated. Near where you start is a door on a lower platform. You'll find an orange ? Switch which will make four item blocks drop down from the ceiling on springs. The second from the left will give you a power up. While they're still in the room, hop on one of the item blocks and it will pull you into another part of the Ghost House when the timer stops. To the right, you will find the first Star Coin. Throughout the Ghost House are yellow platforms with red stripes. If you stand on one, it will take you around the wall into the next room, but will not take you back. Here, you'll find a special type of ghost, called a Balloon Boo. They won't attack you if you face them and will follow you when your back is turned, like a normal Boo, but when you look at them, they start inhaling air and increasing in size, but deflate while chasing you. A ! Switch will make a door to a new room appear. Another ! Switch will make red platforms appear. Wall jump up them for the second Star Coin. From there, you can take the pipe up and over into a new room. Take the high door to the flagpole. To get the third Star Coin and access to the cannon, on the pipe you need red blocks to reach, stand on the pipe as Mini Mario. Wall jump up and to the right to a narrow area. Wall jump up that to see a door. Before entering the door, wall jump up higher to reach the third Star Coin. The door will take you to the red flag goal.

New Super Mario Bros.: 4-A

To unlock this level, you need 5 Star Coins. There is purple water in this level. To help us get around, there are vines to swing on and platforms that function like a paddle wheel. We've seen them before in World 3, but we have to be careful not to touch the purple water. There are two of them before the midpoint. Making life difficult are Paratroopas. The first Star Coin is between a red and a green Paratroopa. Nearby is a vine. Bounce off the first green Paratroopa after the first Star Coin to the vine above to reach a pipe. There, you will find Koopas trapped in brick blocks with the second Star Coin. There is a P-Switch that will turn the brick blocks into coins so you can reach it and get coins. The pipe at the end will return you to the main level. This part has Piranha Plants in it. There is a set of three pipes: green, yellow, green. Enter the first green pipe to reach the third Star Coin. To reach the flagpole, take the vine at the end to the pipe, then another vine to the platform in front of the flagpole. This will open a path to the Ghost House.