World 5-1
In this level, watch out for enemies throwing growing snow balls and falling snow from trees. For the first Star Coin, head right until about one third of the way through. The coin is in the air just before a patch of soft snow. To get it, jump onto the block and then jump to it. For the second Star Coin, jump onto the Green Paratroopa or hit the flying block to position in a position from which you can grab the second Star Coin. For the third Star Coin, jump to where the snowball-throwing enemy is and then jump to it. Then finish the level.
World 5-2
Head down the pipe to start this underground level. When you arrive at the first Star Coin, hit the blocks from underneath and grab it. When you reach the spring, jump on it to reach the third Star Coin. To jump high enough, press A just as Mario/Luigi lands on it. Then destroy the blocks underneath, grab the spring, and run back to the land before the block of ice you are on. Place it underneath the yellow warp pipe. Jump on it and enter the yellow pipe. Go right and jump to grab the second Star Coin. Leave by the green warp pipe on the right. Near the end of the level, there is a green warp pipe with a Piranha Plant in it. To finish this level through the Alternate Exit to World 5-Warp Pipe 1, go through it and finish the level. Otherwise, head all the way to the right and go in the green warp pipe to reach the normal exit and finish the level.
World 5-A
Head right, slightly past the checkpoint and the red ring. Where you see the outlined blocks, go down onto the stretching mushroom and grab the first Star Coin. Hit the red switch and come back up. Continue above. Hit the first block you see to reveal a vine. Climb it, hit the switch, and quickly jump from the spinner. Land on the platform of blocks and jump to reach the second Star Coin. Go back down on the right. Drop from one of the stretching mushrooms to the third Star Coin and grab it. Finish the level.
World 5-Warp Pipe 1
Enter this pipe to skip World 5-Tower and access World 5-3
World 5-Tower
As the wooden platform rises, stay out of the way of Dry Bones and spiky balls. Grab the first and second Star Coins when you see them. Avoid the giant spiky ball by jumping on platforms. Head right as soon as you can, grab the third Star Coin, and continue going up. At the top, go through the double doors to meet Bowser Jr. Defeat him by jumping on him three times.
World 5-3
Slide down the slopes until you see blocks of ice above you. Jump on top and then grab the first Star Coin. Go right and hit the top block from underneath to reveal a vine. Climb it and go right. Head down the trail of coins and wall-jump to grab the third Star Coin. Fall down and go left (before of the spike runners). Hit the blocks to destroy them and grab the second Star Coin. If you want to, go back to the vine by running towards the small space and ducking just as you reach it to cross to the other side. Otherwise, go back to the right, continue to the right, and finish the level.
World 5-B
Head right until you see the first Star Coin. Go down and grab it, then come back up. Continue, and when you see the second go right past the Red Koopas and jump to the top. Hit the switch and go left (watch out for the holes) to grab the second Star Coin. Go right and down to see the third Star Coin. Grab a Koopa shell from above and throw it towards the coin to grab it. Come back up and go right to finish the level. For an alternate exit to World 5-Warp Pipe 2, you must be Shell Mario. Wall-jump up near the end of the level to climb above the ceiling. Head left while running to go in your shell and destroy the blocks. Once the way is clear, head through the green warp pipe to reach the alternate exit.
World 5-Warp Pipe 2
First, get a blue-shell item from a flying box, Hammer Bro, or red mushroom house. Then, unlock level 5-B. Once you have it, play through the whole level. When you reach very near to the end of the level, you will see a flying green koopa. Kill it. Then go on the top slope. Then you wall-jump off the left wall and wall-jump again and move left until you have come to a landing. You will see two blocks. Use your item and run until you break the blocks. Then, run under the tight space and enter the pipe.
World 5-Ghost House
Head up the stairs until you see the third boxing enemy. Let him the destroy the blocks in your way and go right. Wall-jump up to the first Star Coin and come back down. Go back to the staircases and climb the next one about halfway. Run and jump to the left to reach a door. Go through and quickly wall-jump to the second Star Coin to avoid the boxing enemies. Leave and head up until you see blocks. Here you have two choices: the alternate exit to World 5-Cannon and third Star Coin or the normal exit to World 5-4. For the third coin, climb onto the blocks and then jump to reveal hidden blocks. Climb to the middle hidden block, duck, and jump to reveal a vine. Climb it and go through the door once the boxing enemy has destroyed the blocks in your way. Destroy the pumpkins and stand near the middle of the platform. Once it stops shaking, press and hold right until you reach a space in the wall. Go all the way to the right for the third Star Coin, hit the block, climb the vine, go through the door, and finish to unlock World 5-Cannon. For the normal exit, skip the blocks and hidden blocks. Continue up the staircases and finish the level.
World 5-Cannon
Enter the ghost house and play. When you reach a steep slope with three brick blocks, jump onto the blocks and then jump again while on them to reveal three more invisible blocks above them, arranged in a triangular shape. Climb onto the uppermost of these three new blocks, crouch down, and jump. A vine will appear. Climb up and beware of another boxer so climb quick. Let the boxer destroy the blocks to the door because you can't do it, then enter the door.
World 5-C
Head down the pipe to start this underground level. Head right and let a boxing enemy destroy the blocks. Grab the first Star Coin when the way is clear. Continue right, jump onto a blue Buzzy Beetle, and grab its shell. Throw it at the second Star Coin to grab it. Go back and continue. Once you pass the next hole (with four coins above it and a boxing enemy to the right), destroy the top-most row of blocks. Next, hit the second row from underneath to reveal a vine. Climb it and go right. Once you hit the switch, attract the boxing enemy to the left to unblock the way to the third Star Coin. Go down the hole in the middle and finish the level.
World 5-4
In this level, watch out for random Bullet Bills. Head right past the red ring. From the last red spring mushroom before the first Star Coin, jump onto the yellow one and then jump quickly to reach the coin. Get down, hurry to the right (watch out for the hole), and get on the red spring mushroom. Hurry back to the left to grab the second Star Coin. Go back right and continue. When you see the third Star Coin, jump onto the red spring mushroom and quickly get off so that you come off below the top platform. This will allow you to reach the coin. Jump the last few spring mushrooms and finish the level.
World 5-Castle
Head right and fall to the first Star Coin. Quickly get out of the Piranha Plant's way and continue. Next, jump on the trampoline which is moving towards you. Head left in the air to the ledge where the second Star Coin is and grab it. For the third Star Coin, it is much easier to grab it if you are Mini Mario. Get on the last block before the double doors and wall-jump onto the ceiling. Head right, fall, and go left on the conveyor belt to the third Star Coin. Go back right. If you wish to finish this level as Mini Mario, go up and through the double doors. Otherwise, hit the ?-block to grab a mushroom and then go up and through the double doors. To defeat Petey Piranha, jump on him three times when he lands. If you are Mini Mario, a ground pound is required. If you are another type of Mario, a Ground Pound will count as two jumps. To unlock World 7, you must do the last hit as Mini Mario, otherwise you will continue to World 6. It will say World 6, but it actually takes you to World 7.