Infinite Lives in World 7-5
Near the end of level 7-5, you'll find a Red Koopa. Not far away, near where you find the third star, there are two Bullet Bill cannons. You can throw the shell so that it lands between them and bounces back and forth, hitting Bullet Bill enemies as they emerge and soon netting you a bunch of extra lives.
Save File Star
Defeat Bowser, use the cannon at least once, and complete all levels (including the hidden one). Your reward will be a special star icon that appears next to your save file.
Secret Exit in World 7-6
After you reach the mid-level point you will meet an area with two rows of bricks. To do this trick you must be big but not mega mushroom sized. Heres what you have to do, knock out the middle brick on the top row then go on to knock out the third brick on the bottom row. This will make a vine grow, climb the vine then start making your way to the end of the level and reach the red flag. Hope this is helpful to all you's out there if you have any further questions or opinions - thoughts feel free to comment below and i'll try to get back to you ASAP (for anyone who does not know what ASAP means it means as soon as possible).
Bonus mushroom houses
When you get to the end of your game finish and land the timer on the same two digits at the end eg. 011,288 etc. When you land the last two digits on 11,22 or 33 it will reward you with the red mushroom house which you then go in and get a random item box. When you finish and get the timer on 44,55 or 66 it then gives you the green mushroom house which you go inside and get 1-ups. Stop the timer at 77,88 or 99 and you'll get a orange mushroom house which will award you with a mega mushroom.
Infinite 1-Ups in World 2-4
This is probably the easiest and fastest way to get infinite 1-Ups. First, just go through World 2-4 as you normally would, and stop when you get to the staircase at the very end of the level. Stand on the first (bottom) step of the stairs, and wait for the Koopa to come. As soon as the Koopa lands on the second step, jump. If this is timed right, you will keep bouncing on the shell and start getting 1-Ups. If you mess up, just walk to the left a good distance and when you come back to the staircase the Koopa will be back.
How to defeat bowser final castle
When you enter the door fire balls will come forward use ice mario to stop them them dodge bowser hit the switch peach is fake it is actually kamek then bowser becomes huge dodge the fireballs it will break blocks go through the gaps repeat this untill you step on a moving platform hit the ? block propeller mushroom will come out grab it to dodge the lava mountains then fly on to the non-moving platform there will be the proper peach and a big switch hit it bowser will fall but doesn't die. Then watch the ending it will make you lol also the credits is a level
Play as Luigi:
Hold L + R and press A to select a saved game file to play as Luigi in single player mode.
In world 1-1, grab the Mega Mario Mushroom and crash through the rest of the level as fast as possible. If you're quick enough, you can net 5 extra lives.
Secret Toad Houses:
Finish a world with your time ending in two identical digits (77, 88, 22, etc.). A Toad House will appear on the map.
Secret Challenge Mode:
|11, 22, or 33
||Red house (items)
|44, 55, or 66
||Green house (extra life mini-game)
|77, 88, or 99
||Blue house (mega mushroom)
Beat the game. Start the cleared game file and pause the game. Press L, R, L, R, X, X, Y, Y and you should see the message "Welcome to the Secret Challenge mode". This mode works like the old Super Mario Bros., where you aren't allowed to backtrack to the left in any level.
Once you've beaten the game, start the cleared game file. In world 1, you'll see an new blue Toad house. Enter it to see four backgrounds for the touch screen that can be purchased with star coins. A fifth background is unlockable after collecting all star coins, completing all stages, and finding all hidden exits.
If you're Mini-Mario, you can jump on top of Bullet Bills and ride them, sometimes across entire levels.
Get to World 4:
Beat World 2 as Mini-Mario.
Get to World 7:
Beat World 5 as Mini-Mario.
Get to World 8:
Beat World 6 as Mini-Mario.
Some stages have secret exits that lead to Warp Cannons, which fire you forward several worlds. Look below to see where you can find the Warp Exits, and where they will take you.
||Fires you to...
|A tower in World 1
|The first stage in World 2
|The Ghost House in World 3
|The Ghost House in World 4
|The Ghost House in World 5
Thanks to Revolution Readers A.W.O.L, Codeman, njnjn, dj, faryego, and Bahamut420!