Editing Super Mario World: Super Mario Advance 2

If Mario/Luigi is riding Yoshi with 999 lives, the player may enter a level with possibly at least a [[1-Up Mushroom]] (e.g. [[Yoshi's Island 2]]) that was already beaten, stick Yoshi's tongue to the 1-Up Mushroom, and rapidly press {{button|gba|start}} when Yoshi's mouth is full. Upon returning to the map screen from the pause menu, the player's life counter shows up as Y00 (1000). This glitch is temporary, and the life counter resets if the player enters another level.

In the level [[Outrageous]], if Mario or Luigi is riding a Yoshi and falls into the bottomless pit before the last [[Bullet Bill]] stand, he can jump off the Yoshi at the very last second and then be damaged by a Bullet Bill. This must be done in a frame-perfect manner. After beating the level, Mario or Luigi will be riding a Silver Yoshi that acts as a Yellow Yoshi. After Silver Yoshi eats all of the red berries in a level, an egg will hatch not to reveal a [[Super Mushroom]], [[Fire Flower]], [[Cape Feather]], or [[Super Star|Starman]], but instead an [[Unshelled Koopa Troopa|unshelled Koopa]].

After having found all 96 exits, the player can simultaneously press a {{button|gba|Pad}} button and {{button|gba|select}} to trigger the status menu, then choose a level and move in an incorrect way going to an incorrect level. Pressing {{button|gba|A}} will result in no response, an endless bonus game, an actual level, or an inaccessible level like the intro level. Some levels if beaten will glitch the game drastically if the normal exit is taken or revert to the original overworld if the secret exit is taken. For unknown reasons, getting more than 96 exits through this glitch reverts the overworld back to the normal overworld and saving is fatal. Through this glitch, it is possible for the player to access a test level and unused intro from the original game by going to Star World 3, pressing right on the {{button|gba|Pad}} and {{button|gba|select}} simultaneously, and selecting the second Star Road on the list at the level screen.

After completing the game, Mario and Luigi should return to the flattened Yellow Switch Palace, then the player must very quickly press {{button|gba|select}} and down on {{button|gba|pad}}, then select [[Chocolate Island 3]]. From there, Mario or Luigi will begin a winding trek back to the flattened Yellow Switch Palace; however, it will display Chocolate Island 3's name instead of "Yellow Switch Palace." Upon pressing {{button|gba|a}}, Mario or Luigi will be able to re-enter the Yellow Switch Palace. It should be noted that after returning here, the Yellow ! Switch will not be found at the end as it has already been pressed. Therefore, Mario or Luigi must manually exit the level since there is no other way out.