Avoid Damage From Bowser
When fighting Bowser in the final level of the game, his lower half will not do damage to you. That means you can avoid damage from his ground-pound attack by ducking if you have obtained a power-up at some point, or, if Small Mario, you can walk under him and through him without sustaining damage!
Beat Fortress via N-Spade
In the game, you need to wait until the N-Spade card game - which appears with every 80,000 points you earn - spawns and moves to the spot of a fortress on the overworld map. If you go there now and play it, the fortress will as if you had beaten it afterwards, being collapsed and unplayable. Note, however, that the bridges and locks affected by defeating the fortress normally will still not unlock or reappear, so only do this when these things are not required.
Invincibility with the Tanooki Suit and Kuribo's Shoe (JP Version Only)
When you come across a Kuribo's Shoe, make sure that you have a Tanooki Suit equipped. Just before you jump into the Shoe, transform into a statue. Mario will turn gray and enemies will be unable to touch him.
Contributed By: discoinferno84.
In this game, when you normally jump on enemies in sequence without touching the ground, the points you earn will increase from 100, to 200, to 400, to 800, to 1,000, netting a 1-Up on the sixth sequential jump and all those after. However, if your fifth (the one after 800 points) jump lands on either a Lakitu or Boomerang Bro., you'll begin getting 1-Ups right then! This glitch was fixed in Super Mario All-Stars.
Fight Bowser With No Fireballs
In Bowsers castle at the end of the game, it is possible to make it so he DOES NOT SPIT FIRE AT YOU. This trick is easy and only requires getting to world 8 with a P-wing. First off, use your P-wing on the map before entering the Final Castle. YOU MUST GET TO BOWSER INTACT. If you get to the Bowser fight room and the Bricks that he smashes through are not flush with the rest of the floor, then you are in the wrong room. Now, when you reach Bowsers room, FLY straight up and to the left. You will be able to walk on a wall above the screen. Drop down on the other side. You will be in another room to Fight Bowser in. When you drop, you will be on a door that opens to the princess. Ignore this room and DO NOT GO TOO FAR TO THE LEFT. If you do, you will have to fight Bowser and he will still have his Fire Balls. Fly back over the wall to the first room you were in and start the Bowser fight. He will still throw his head back and make the sound of spitting fire, but nothing will come out. ;)
Contributed By: Ocularis_Draxus.
Get to World 1-2 as Raccoon Mario, with the tail. Climb the hill at the beginning and jump over the horizontal pipe. Stand there for a bit and a whole bunch of Goombas will start walking out of the pipe. Wait for 2-3 of them to come out of the pipe, then jump ontop of one and HOLD A to fly high into the air. Now that you are in the air, use your tail to slowly glide down from the air. On you landing, be sure to land on a second Goomba. Repeat this process for as long as you can. Eventually, the points you get for hitting each Goomba will turn into extra lives. This can be done for as long as you desire to do so.
This can also be done in 2-Fortress, and 7-5, but it is most notably done in 1-2.
Contributed By: skcin7.
Make player 'hide' behind scenery
To ''hide'' behind scenery, simply hold down for a couple seconds while standing on a white block. Then your player can ''hide'' behind scenery for about thirty seconds.
Contributed By: Dave 008 Bond.
Morph a wandering hammer brother into a treasure ship.
To turn a wandering hammer brother (the ones that walk about on the world map) into a white ship full of coins, collect a number of coins that is a multiple of 11. Make the tens digit in your score match the multiple of 11. Stop the timer at the end of the stage that you are playing in on an even number.
One combination would be: 11 coins, 9,310 as your score, and the timer at 104. This only works in worlds 1, 3, 5, and 6.
Contributed By: Felix Arabia.
See a different Thank You letter from the King
Get through an airship and defeat the boss as a frog, Hammer Mario, or Tannooki, and you'll receive a letter from the King that reads a little differently.
Contributed By: Retro.
To get the N-Spade Card Game
To get the N-Spade card game to appear on the World Map. You must do gain 80,000 points as one player, and successfully beat the stage that you broke the 80,000 points with.
Contributed By: capcomkid.
Warp to Level 8
You could just use the warp whistle at level 7...
If you want to go straight to level 8, you must use a Warp Whistle to proceed to the Warp Zone, then use another warp whistle IN THE WARP ZONE. You will be transported to the level 8 pipe at the bottom of the screen.
These secret items will allow you to warp. Here are their locations.
Find the white block near the end and crouch on to of it for 5 seconds. Then proceed to the goal, and go behind it. You will find a Mushroom house with a Whistle.
Level 1 Fortress
Fly over the top of the level when you find the first door with your raccoon powers, and find a hidden door at the far right on the ceiling. It leads to a warp whistle
Level 2 Hammer Brother
Get the Hammer from one of the Hammer Brothers here and use it to destroy the rock at the upper right corner of the Level 2 Map. Then engage the hammer brother on the other side. You should get a chest with a Warp Whistle.
White Mushroom Houses
If you get enough coins in a certain course, you can get a White Mushroom House!
A White Mushroom House in worlds 1,3,5,7 have P Wings
A White Mushroom House in worlds 2,4,6 have Anchors
Levels and required coins:
1-4 (44 coins)
2-2 (30 coins)
3-8 (42? coins)
4-2 (22 coins)
5-5 (28 coins)
6-7 (78 coins)
7-2 (42? coins)
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