List of Super Mario World 2: Yoshi's Island glitches
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This is a list of glitches in the game Super Mario World 2: Yoshi's Island.
NOTE: All names are conjectural unless otherwise specified.
This glitch is hard to execute. When fighting the final boss, if Bowser gets close enough and breaks all the platforms, he flips and heads in reverse. He duplicates a lot of times, and returns later. This glitch has a somewhat extremely slow progression. Also, if all the platforms have been destroyed when Bowser is defeated, the game freezes due to Bowser not landing on a platform.
Eating Baby Mario
NOTE: Yoshi must have the 10 Stars or 20 Stars item to activate this glitch.
In World 5-5: Goonie Rides!, the player should go to the area with the Helicopter Morph Bubble. The player should hit a Goonie and wait until the counter reaches zero. While the Toadies are taking Baby Mario away, the player should quickly hit him with Yoshi's tongue and touch the Helicopter Morph Bubble. Once Purple Yoshi has already transformed, the Toadies 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 is still missing, the game does not freeze, but the level is rendered impossible to complete.
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. The screen becomes filled with various twitching objects, and Yoshi as well as all other enemies and objects disappear. Since the player cannot see anything but the terrain, this glitch makes the game nigh unplayable. The screen momentarily returns to normal when the game is paused, although it is only 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.
Message Block's Hidden Power
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 Message 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 becomes invisible. Yoshi can still walk around while unseen. If Yoshi jumps through the goal roulette while invisible, the whole game freezes and the player must reset their Super Nintendo Entertainment System. In the Japanese version, the controller becomes unresponsive after the Message Block text appears, requiring a reset.
Nothing in Yoshi's Mouth
In places like World 3-1, there may be situations where it looks like Yoshi has something in his mouth, but he really doesn't. First, the player must have Yoshi eat a Grinder and keep it in his mouth until he reaches the checkpoint. Then, as soon as the player touches the ring, he must spit the Grinder out (the player must hold up while spitting it out). The Grinder that Yoshi spits out turns into a star, but before it even does that, the player can see that the spat out Grinder is invisible. When the checkpoint sequence ends, the star from the Grinder can be collected, but Yoshi also has an invisible object in his mouth. He can still stick his tongue out, but he can't eat enemies. When the player presses down with the invisible object still in Yoshi's mouth, he produces an invisible egg.
This glitch is possible in the SNES version. There are several levels where this glitch can be performed, and all of them rely on Yoshi entering a warp from multiple coordinates. In the Game Boy Advance version, Yoshi's Island: Super Mario Advance 3, it causes the game to freeze.
In 2-4: Bigger Boo's Fort, before Yellow Yoshi leaves the second section through the Warp Pipe, the player must let the lower Boo Blah go towards Yoshi and the pipe. When the Boo Blah meets the pipe, Yoshi must jump on it and enter the Warp Pipe at the same time. That way, Yellow Yoshi enters the pipe, but overhead. This causes the game to warp Yoshi out of the fortress.
In 3-1: Welcome To Monkey World!, when Green Yoshi meets the secret passage to the bonus area, he must simply jump in the water on the left overhead wall and dive in towards the left. Then, the player must press Pause before doing it, making sure to go towards the left and then quickly get back to the warp. If done correctly, Yoshi is warped out of the level.
In 4-7: Ride Like The Wind, Red Yoshi must have used the hidden Spring Ball towards the platform before the bonus area. Before Red Yoshi enters the bonus area, he must spring off the Spring Ball and touch the left wall at the same time. If done right, Red Yoshi touches the left wall and be warped out of the stage.
In each case, Yoshi is warped to coordinate (0, 0): the top-left corner of Make Eggs, Throw Eggs; he must then flutter around nine times while holding right on in order to reach solid ground. Clearing the stage causes the game to think that Yoshi had cleared the stage he had originally warped from, and the score he obtained upon completion carries over to the starting stage as well.
This glitch must be done in King Bowser's Castle, in Door 1. The player must go to an area where a ! Switch near a long lava pit can be found. The player would normally have to hit the switch in order to get across the lava, activating the Dotted Line Blocks. If the player jumps in the lava, in the direction of the switch, Yoshi performs a last jump, since he burned himself. If done right, Yoshi hits the switch, and comes back to life. The music stops, and the player controls Yoshi normally, even though he was supposed to lose a life. If the player attempts this glitch while Yoshi only has one life left, he has zero lives, as shown in the pause screen. However, if the player repeats this process, Yoshi instantly gets 999 lives.
Attempting to use a melon's effects while riding a Lakitu's Cloud, at least on 5-1: BLIZZARD!!! where both watermelons and Lakitus occur naturally but may happen elsewhere with the use of items, causes Yoshi to use up all of the watermelon's effects uncontrolled. Yoshi spits out all watermelon seeds, and if he destroys the cloud while riding it with the red or blue watermelon, he uncontrollably spams his watermelon and then tongue afterwards, freezing the player in place until death or reset.
Blue Yoshi on World 6 Map
When the player arrives on the World 6 and get to at least 6-6, they can see Blue Yoshi, despite Green Yoshi being playable in the last level. The color is fixed upon reaching 6-8 or pressing right on the D-Pad to reset the Yoshi's positions.