Tongue Glitch

Tongue glitch

Tongue Glitch is a glitch where the game still thinks Yoshi has a sprite in mouth but doesn't. Most common way is spitting out an enemy as you enter save ring (turning it into a star), this leads to Yoshi being able to stick out their tongue but can't grab enemies or any other sprite. Getting hit in this state while tongue retracts causes the tongue to not properly reset back and will infinitely travel backwards causing the game to write too many sprite graphic entries, eventually corrupting sprite values and crashing the game (usually).

The glitch can be resolved in one of two ways:

• If the enemy could normally be swallowed, pressing down will "eat" it, but will not give an egg. (Note: Does not work on uneatable things like koopa shells).
• Leaving the room or entering the goal ring will return Yoshi's mouth to a normal state.

This glitched is used in 2 different ways for Yoshi Speedrunning:

• Can be used to rearrange the map and skip obstacles, see 3-3 Glitch (submarine skip) used in Any% Warps, No Null Egg
• Arbitrary Code Execution in Any% (Credits Warp)

Ways to get Tongue Glitch

• Spit out enemy while transformation effect happens (Save Ring/POW/Cloud Item/Big Egg hit
• Tonguing a Toadie while jumping on them
• Tonguing a Big Egg as it lands on ground
• Tonguing a Fly Guy and Star at the same time (letting star despawn)

Explanation

The 3-3 map corruption trick uses the tongue glitch to rearrange the objects in the level to allow you to reach the second middle-ring from the second screen, to skip the submarine section. You need either a POW block or a big egg to do it. Big eggs are recommended, as there is no known way to consistently get a POW block.

This trick saves around 20 seconds in the Any% Warps category and is banned in Any% Warpless.

How To Do It

2-7 Safe Baxter

You'll need to Baxter a big egg in 2-7 [1] and then again in 3-1 [2] and 3-2 [3].
There are 3 methods you can use to do so:

• The safe method as seen in the gif on the right.
• 1 up-tongue.
• 2 up-tongues.
• Variation of 2 up-tongues.

For 2-8: Simply be aiming the big egg before the boss falls off. To be safe, aim the egg when you give the boss the final push off of the edge. [4]

Once you reach 3-3 with the big egg, go to the 2nd screen:

• Grab any enemy, throw the big egg into the air and spit out the enemy right before the big egg lands. This will activate the first phase of the tongue glitch where Yoshi both has and does not have something in his mouth.
• Next, go to where the Shy Guys are on the red bridge, tongue and get hit when Yoshi's tongue is fully extended. This will activate the second phase of the tongue glitch and turn Yoshi and Baby Mario invisible as a result.

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3-3 Submarine Skip Tutorial

• Reclaim Baby Mario and do a full jump followed by 3 flutters to enter the helicopter bubble.
• Once you transform into the helicopter, the map should be rearranged, allowing you to fly to the right and enter the middle-ring.
• After you get the middle-ring, hold down to die and then respawn. You have now successfully skipped the submarine room. [5] [6]
  

The following images will show you what good and bad positioning of the big egg looks like.
Remember, that if the big egg is too far off-screen, it will despawn.

Big Egg Baxter Visual Cues

Map Corruption In Other Levels

• 5-3
• 6-7