Item duplication glitch: Difference between revisions

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Every Pokémon has two separate bit lists that tells the game whether it has been seen or caught. If the bit is off, that means it hasn't been caught or seen.  
Every Pokémon has two separate bit lists that tells the game whether it has been seen or caught. If the bit is off, that means it hasn't been caught or seen.  


Missingno.'s [[Pokédex]] seen bit is in the same location as the bit that stores how many of the 6th item is in the bag, as well as [['M]]'s. This is why, when Missingno. or 'M is encountered, the sixth item slot is increased by 128 if the quantity of the item is less than 128. The glitchy box symbol is a result of the game attempting to display a number greater than 99, which causes it to grab sprites from beyond the number sprites. Sometimes it can appear to be a blank tile, but if one goes somewhere else or out of battle it will revert back to an unusual tile.
Missingno.'s [[Pokédex]] seen bit is in the same location as the bit that stores how many of the 6th item is in the bag, as well as [['M (00)]]'s. This is why, when Missingno. or 'M (00) is encountered, the sixth item slot is increased by 128 if the quantity of the item is less than 128. The glitchy box symbol is a result of the game attempting to display a number greater than 99, which causes it to grab sprites from beyond the number sprites. Sometimes it can appear to be a blank tile, but if one goes somewhere else or out of battle it will revert back to an unusual tile.


A way to tell whether " 9" is in fact 9 or [blank tile]9 is to select Toss. The quantity is displayed with a leading zero if the amount is actually 9, and as simply " 9" if not.
A way to tell whether " 9" is in fact 9 or [blank tile]9 is to select Toss. The quantity is displayed with a leading zero if the amount is actually 9, and as simply " 9" if not.


===Performing the glitch===
===Performing the glitch===
The player must perform the [[old man glitch]] to encounter [[Missingno.]] or [['M]], then defeat, run from, or catch the Missingno. or 'M.
The player must perform the [[old man glitch]] to encounter [[Missingno.]] or [['M (00)]], then defeat, run from, or catch the Missingno. or 'M (00).


After the battle, open the menu and view the items currently in the bag. If done correctly, the game should show a glitch character followed by a standard number. This glitch character represents a place value of 10 or above.
After the battle, open the menu and view the items currently in the bag. If done correctly, the game should show a glitch character followed by a standard number. This glitch character represents a place value of 10 or above.