List of Super Mario World 2: Yoshi's Island glitches

These are glitches found in Super Mario World 2: Yoshi's Island.

Glitches

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NOTE: Yoshi must have the 10 Stars or 20 Stars item to activate this glitch.

In World 1-2: Watch Out Below!, the player should go to the area with the Helicopter Morph Bubble. The player should then get the bubble and fly into a Goonie. He/she should then wait until the counter reaches zero. While the Toadies are taking Baby Mario away, the player should quickly hit him with Yoshi's tongue. The player should touch the Helicopter Morph Bubble. Once Yoshi has already transformed, the Toadies will try to take Baby Mario again. When they pop Baby Mario's bubble, the player must open their inventory and select the 10 Stars or 20 stars item. When the Toadies are gone, the player must wait until Yoshi transforms back to normal. The player is able to eat Mario if Yoshi licks him. Even though Baby Mario still missing, the game won't freeze, but the level is rendered impossible to complete.

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Note: This glitch occurs on the console and not the game, and is not present on all SNES consoles.

This glitch occurs during specific areas where the graphics are rendered incorrectly. It seems to occur where translucent and transparent objects are present. The screen will become filled with various twitching objects, and Yoshi as well as all other enemies and objects will disappear. Since the player cannot see anything but the terrain, this glitch makes the game nigh unplayable. The screen will momentarily return to normal when the game is paused, although it will only be visible for a fraction of a second. This glitch appears to be a flaw in the SNES's rendering capabilities as opposed to the game's, as it only occurs on specific consoles and not specific cartridges.

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In world 2-7 Lakitu's Wall, Yoshi can eat a Fat Guy for a Giant Egg. When Yoshi arrives to the part with a Car Morph Bubble, he should hit the Hint Block with the Giant Egg to make every thing freeze for a little while. When that is over the stars from above will fall to the ground and Yoshi will be invisible. Yoshi can still walk around while unseen but it will be difficult. If Yoshi jumps through the finish ring while invisible, the whole game freezes and the player will have to reset their Super Nintendo Entertainment System.