How to Duplicate Items in Pokémon Red or Blue

Anyone still have Pokémon Red or Blue? Well, if you do, and you want to duplicate your items, then read this!

Steps

  1. Image titled Duplicate Items in Pokemon Red or Blue Step 1
    1
    Get the item you want to duplicate and put it in the sixth item slot of your bag/inventory.
  2. Image titled Duplicate Items in Pokemon Red or Blue Step 2
    2
    Fly to Viridian City and walk north until you reach an old guy. Talk to him and when he asks you if you're in a hurry, say "No". He'll then show you how to catch Pokémon. Watch him do it.
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  3. Image titled Duplicate Items in Pokemon Red or Blue Step 3
    3
    Fly to Cinnabar Island and surf on the right side of the island until you find Missingno. (Just a bunch of glitchy-looking blocks).
  4. Image titled Duplicate Items in Pokemon Red or Blue Step 4
    4
    Fight it and after you win, the item in the sixth slot will have a glitch box instead of a number.
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Community Q&A

  • Question
    Can I do it more than once?
    Community Answer
    Community Answer
    Yes, but it only works on items you're holding less than 128 of. If you encountered Missigno, you should have 128 more of the item. If you encountered 'M, you will have exactly 128. You can always deposit items in your pc and continue, though.
  • Question
    Can this be done on the 3Ds S download game?
    Community Answer
    Community Answer
    Yes, every glitch you can do on the Gameboy can be done on 3DS.
  • Question
    Can I do this on an emulator?
    Community Answer
    Community Answer
    Yes, you can, I have personally. There are no extra steps needed, and it helps if you stay on the tile that is half water and half land when you do this.
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Warnings

  • MissingNo. will not break your game. It's true that it may clutter the graphics, but this can be fixed by looking at another Pokémon's stats. It's also true it could freeze your game when depositing the Pokémon to the pc, but only if it's level 0. The only permanent glitch would be the messed-up Hall of Fame, but this problem happens also when seeing MissingNo. -not only when catching it.
    ⧼thumbs_response⧽
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About This Article

wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. To create this article, 19 people, some anonymous, worked to edit and improve it over time. This article has been viewed 113,606 times.
24 votes - 77%
Co-authors: 19
Updated: January 28, 2017
Views: 113,606
Categories: Pokemon Red Green Blue and Yellow
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