Cheats for Super Mario World (GBA)

Super Mario Brothers remix
If you sit at one of the levels in Special World for about 5 minutes, you'll start to hear a Super Mario Brothers remix.

50+ extra lives
Go to the secret level Vanilla Secret 2. Go all the way to where the Gray switch appears. Carry it back to the mid-way point of the level, step on it, and then run all the way to the left. All the koopas at the beginning will become Gray Coins, which will give you points and lots of 1-ups, 2-ups, and 3-ups as you collect them.

Re-enter Castles and Fortresses you have already beaten
When you beat a castle or fortress, you normally cannot enter it again. Go to the castle or fortress you want to play again and Press L+R at the same time

In-game reset:
Hold Start + Select + A + B during game play.

Easy mode:
Press Select at the main title screen for an easier game.

Play as Luigi:
Press R at the world map.

Ending bonuses:
Successfully complete all 96 goals to get another color scheme for the world map, alternate enemies, a new introduction sequence featuring Yoshi, and other changes. You will also be able to start at any location on the map. Press Select at the main screen, then select a level at the status screen. Press A to start at that level instead of moving to it on the map.

Retro stage:
Clear all the five levels on Star Road by finding the hidden keys and locks in all of the levels. When you do this on the fifth level, a warp star should appear on the hill in the middle of the map. This will take you to the Special Zone, where you can play on 8 retro levels.

Blue Switch Palace in World 5:
Pass the half way mark. If you lost your Cape Feather, Fire Flower, and/or Mushroom, press Start and choose "Save And Quit." Then, head back to Super Mario World. Once there, go to Yoshi Island 4 and pick up the Mushroom and Fire Flower. Go to Donut Plains 1 and pick up a Feather. Go to start and press back on both of these levels once you have them all. Return to Forest Of Illusion 2, and you will be at the halfway mark. As soon as you find a Rip Van Fish sleeping on the bottom of your screen, pass that sleepy fish. There is a good chance that you will get hurt. You will find a key. Pick it up and head for the nearby key hole. You will complete that level and a path will show you where the Blue Switch Palace is located.

Chocolate Island 1: Extra life:
Carry the Jumping Spring located near the goal to the goal as you pass through it. The spring will turn into a 1-up Mushroom.

Chocolate Mountain 2: Easy completion:
Have a Yoshi and run through the first part until you reach the warp pipe. Enter it (you should have blue Yoshi). You will ow be at a place with hills and flying turtles. Eat a turtle, then fly to the top of the screen. Keep flying until you bump into the wall. Then, go left and enter the warp pipe as you can. You will be at a place with Chargin' Chucks that throw baseballs at you. Go to the end of that to find a key and keyhole.

Donut Plains 1: Get Caped Mario or Luigi fast:
Jump on the first red caped Troopa. Once you get the Feather, do not step on the shell-less Troopa. Return to where you saw the caped Troopa. It will be there again. Step on it to get another Feather.

Donut Plains 1: Chased by birds:
From the half-way point, go forward until you reach a blue pipe coming out of the ground. Go inside this pipe. Once there, you will notice a stage with many coins in the air. First, hit the big coin in the beginning of the stage to reveal a counter telling you how many coins there are. You must collect all of the coins in this level. You can do so by gliding through the air with caped Mario or Luigi. Once you get all 600 coins, you will get three lives and a flock of colored birds. Anywhere you move in that stage, the birds will follow you, even in the air.

Donut Plains 1: Quick completion:
As you begin, run to the first caped Koopa and stomp on it. A Feather will appear. Get it to get the Cape and fly -- run, then leap but keep holding B. You will soar high into the sky. Then, press the D-pad in the opposite direction that you are facing. Keep pressing the D-pad in that direction until you reach the tape.

Donut Plains 2: Secret exit:
Duck into the second green pipe, then press R to smash down and reach the shell. Toss it up at the highest yellow block to reveal a vine to Green Switch Palace.

Donut Secret 2: Extra lives:
Unleash the Starman at the start of the level at the top of the vine. Get it then run very fast to the right. Near the end will be another block, all alone. While still invincible, hit the block and another Starman will appear. Plow through the long line of enemies. They will produce points, then extra lives.

Forest Of Illusions: Extra lives:
Enter the first level of Forest Of Illusions and go through until you reach the block with the changing power-ups. Hit it when it changes to a Feather, and grab it when it changes into a Star. Run through the next part, hitting as many enemies as you can. You will receive about at least 15 lives. Exit and repeat as many times as desired.

Forest Of Illusions 4: Extra lives:
Complete the level, then go into it again. There will be a cloud with a Koopa holding a 1-Up Mushroom. Get the Mushroom, press Start, then select the "Back" option. Repeat this to get as many extra lives as needed.

Forest Secret Area: Extra lives:
Go to the Forest Secret Area with a super cape equipped. Jump onto the first set of flying blocks and move in between the first and second block. When you are there, start spinning (press B rapidly). You will eventually hit a red turtle that will keep hitting your cape as you spin, giving you points and eventually lives. Note: The position of Mario may have to be adjusted slightly to get all 17 of the lives.

Ghost House 1: Top Secret Area:
Two Feathers are required for this trick. Go to the first Ghost House, then run and jump while you are Caped Mario. Fly to a ledge. Run forward then run back toward the entrance. Jump to reach the ledge. Run right and you will fall and find four yellow blocks and a door. Break the four blocks to get extra lives, then go through the door. Go through the goal and you will go to a happy hill and the Top Secret Area. You can get one Yoshi, two Fire Flowers, and two Feathers here. You can return here as many times as desired.