During the opening sequence, wait until Mario and Luigi begin running around on the screen. Then, press random buttons on the controller before selecting the number of players and pressing start. The game will start in a random world.
Complete the game, then press at the ending screen. You will then have 28 P-Wings when the next game is started.
You can collect warp whistles in hidden locations that you can then use on the map screen to warp to a different World. Here are the hidden locations:
| World | Warp Location |
|---|---|
| World 1, Level 3 | Towards the end of the level you will find a white block with a Koopa Troopa on it. Remove the Koopa Troopa, then stand on this block and hold . After a while, you will fall down behind the scenery. Run to the right and keep running behind the black part at the end of the level to enter a room where the first warp whistle is hidden. |
| World 1, Boom Boom's Castle | You will need to have the Racoon Tail to access this warp whistle. Procede on the first screen until you reach the door to Boom Boom's chamber. Jump on the Skeleton Koopa and while it is stunned, accelerate and fly up to the top of the screen against the wall just before the tunnel. Fly up and to the right and you will eventually move along a platform above the screen and enter a hidden room with a warp whistle. |
| World 2 | In World 2, you can enter challenges with Boomerang Brothers when they are present on the map screen. Defeating them will give you special items, one of which is a hammer. Once you have obtained the hammer, use it on the rock in the top right corner of the map screen to reveal an entrance to a room where you can retrieve another hidden warp whistle. |
| World 4 | Towards the end of World 4 you will find a white block. Stand on the block and hold until you fall behind the scenery. Run to the right, behind the black part at the end of the level to enter the hidden room with a warp whistle inside. |
To warp directly to World 8, collect 2 warp whistles and have these in your posession at the same time. Use the first one, which will take you to a Warp Zone. While you're in the Warp Zone, use the second whistle, which will take you to another Warp Zone that allows you to enter World 8.
A Treasure Ship will appear on the map screen if you do the following: On any regualr stage in Worlds 1, 3, 5 or 6, collect a number of coins that is a multiple of 11 (11, 22, 33, 44, etc.), then make the last 2 digits of your score equal to the number of coins you have but rounded down to the previous 10 (so if you have 66 coins, the last 2 digits of your score should be 60). Finally, at the end of the level when you hit the card block, make sure the last digit of the timer is an even one. If all of these conditions are complied with, a ship will appear on the map that will have lots of money inside.
On certain stages you can make secret White Mushroom Houses appear by collecting a certain amount of coins. Here is a list of the stages this will work in and the amount of coins needed to make the White Mushroom House appear to collect the indicated prize:
| World | Coins Needed | Prize |
|---|---|---|
| World 1-4 | 44 | P-Wing |
| World 2-2 | 30 | Anchor |
| World 3-8 | 44 | P-Wing |
| World 4-2 | 22 | Anchor |
| World 5-5 | 28 | P-Wing |
| World 6-7 | 78 | Anchor |
| World 7-2 | 46 | P-Wing |
This cheat requires the Pro Action Replay cheat device.
| Outcome | Code |
|---|---|
| Infinite Lives for Player 1 | 0007 3605 |
| Infinite Lives for Player 2 | 0007 3705 |
| Player 1 always Super | 0000 ED01 |
| Player 2 always Super | 0000 ED01 + 0000 EE01 |
| Player 1 always Racoon | 0000 ED02 |
| Player 2 always Raccon | 0000 ED02 + 0000 EE02 |
| Player 1 always able to fire | 0000 ED03 |
| Player 2 always able to fire | 0000 ED03 + 0000 EE03 |
| Player 1 always Frog | 0000 ED04 |
| Player 2 always Frog | 0000 ED04 + 0000 EE04 |
| Player 1 always Tanooki | 0000 ED05 |
| Player 2 always Tanooki | 0000 ED05 + 0000 EE05 |
| Player 1 always has sledgehammer | 0000 ED06 |
| Player 2 always has sledgehammer | 0000 ED06 + 0000 EE06 |
This cheat requires the Game Genie cheat device.
| Outcome | Code |
|---|---|
| Infinite Lives | SLXPLOVS |
| 9 lives after continue | AEKPTZGE |
| 1 life after continue | AEKPTZGA |
| More powerful jumps | ELKZYVEK |
| Very powerful jumps | EZKZYVEK |
| Extremely powerful jumps | EAKZYVEK |
| Multiple jumps | GZUXNGEI |
| Walk in the air | SXEZSKOZ |
| Faster running | OXKZELSX |
| Very fast running | XVUXNUEE |
| Fly from a standing start while Raccoon | AANZKLLA |
| Begin the game on World 2 | PEUZUGAA |
| Begin the game on World 3 | ZEUZUGAA |
| Begin the game on World 4 | LEUZUGAA |
| Begin the game on World 5 | GEUZUGAA |
| Begin the game on World 6 | IEUZUGAA |
| Begin the game on World 7 | TEUZUGAA |
| Begin the game on World 8 | YEUZUGAA |
| Mario can reuse items | YPXXLVGE |
| Restore powers after playing an action scene | SZUEXNSO |
| Start the game as Fire Mario | ZEUXKGAA |
| Begin the game as Raccoon | LEUXKGAA |
| Begin the game as Frog | GEUXKGAA |
| Begin the game as Tanooki | IEUXKGAA |
| Begin the game with Sledgehammer | TEUXKGAA |
| Always Super (When fighting Bowser, you must stand in front of the door and press UP to enter the chamber with the princess so you do not get caught in the time chamber) | XUKXGLIE |
| Always able to fire (When fighting Bowser, you must stand in front of the door and press UP to enter the chamber with the princess so you do not get caught in the time chamber) | UXKXGLIA |
| Always Raccoon (When fighting Bowser, you must stand in front of the door and press UP to enter the chamber with the princess so you do not get caught in the time chamber) | NXKXGLIE |
| Always Frog (When fighting Bowser, you must stand in front of the door and press UP to enter the chamber with the princess so you do not get caught in the time chamber) | OUKXGLIE |
| Always have Sledgehammer (When fighting Bowser, you must stand in front of the door and press UP to enter the chamber with the princess so you do not get caught in the time chamber) | XNKXGLIE |
| Invincibility after changing up from Super Mario | SZKIKXSE |
| Become Super after falling off screen | AEOSSZPA + PAOZTGAA |
| Have Fire Power after falling off screen | AEOSSZPA + ZAOZTGAA |
| Become Raccoon after falling off screen | AEOSSZPA + LAOZTGAA |
| Become Frog after falling off screen | AEOSSZPA + GAOZTGAA |
| Become Tanooki after falling off screen | AEOSSZPA + IAOZTGAA |
| Have Sledgehammer after falling off screen | AEOSSZPA + TAOZTGAA |
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