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On the subject of obtaining Mew with old man glitch (non-Japanese Pokémon Red and Blue)

3,555 views · Published 13 August 2017 · 13:14 · Indexed 20 October 2026

Channel: Evie (ChickasaurusGL) 🌺 · 2017 · Gaming

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The old man glitch involves manipulating encounters to be based on the characters in your player's name. The second, fourth, sixth, eighth and ninth characters control levels, and the third, fifth, seventh and tenth characters control the encounters for those levels (hence ABC would result in a level "B" (129) "C" (Golbat) etc.).

A problem with this is that normally certain characters aren't available on the New Name menu, including hex:15, the value for Mew.  However, using arbitrary code execution and Super Glitch we can force encounters with normally unavailable Pokémon like Mew.

Sadly glitch Pokémon that freeze the game and those with IDs greater than 199 (hex:C7) are still unavailable with the glitch (Pokémon with IDs greater than 199 appear as Trainers).

8F method:

Requirements:

1. Dry underflow glitch set up to get the items you need with Celadon looping map trick. https://www.youtube.com/watch?v=ZyppANEvnh8 http://glitchcity.info/wiki/Celadon_looping_map_trick

2. A bootstrap party (e.g. to item 3): http://forums.glitchcity.info/index.php?topic=6638.msg194471#msg194471

3. The reusable RAM writer set up (or you can also use an items code specifically made for the purpose of renaming your character), which with DataCrystal, the Pokémon Red disassembly and a calculator that converts hexadecimal to decimal, you can use to rewrite any WRAM address you like:
http://forums.glitchcity.info/index.php?topic=6638.msg200510.html#msg200510

The parameters for Mew via the modification of name character 3 are Lemonade x21, Carbos x209 and X Accuracy x90 (i.e. hex:15 (or dec 21) in D15A (Mew's ID, can be changed to anything you want, see http://glitchcity.info/wiki/The_Big_HEX_List), the Lemonade's quantity is the hex:15, the Carbos' quantity (209) is the D1, the X Accuracy's quantity (90) is the 5A). For character 5, 7 and 9 use X Accuracy x92, x94 or x96, respectively).

Method:
Simply use 8F and perform the old man glitch to get the Pokémon based on the character you changed in your name. IDs C8 and above result in Trainers instead.

Super Glitch method:

Requirements.

1. A Pokémon with Super Glitch as its first move.
2. A PP Up.
3. A Pokémon with Fly in the PC box.
4. A Pokémon with Surf in the PC box.
5. An LM4 (Ditto glitch Special stat 198) in the PC box knowing Body Slam, Mega Kick (via TM05), Water Gun and Super Glitch (raise it with Rare Candies in the Celadon Mansion safe spot to avoid corruption http://glitchcity.info/wiki/File:Super_Glitch_safe_spot.png and when you enter battle to rearrange its moves, make sure this was the last place you opened the menu).

Steps.
1. Go to the spot in Cinnabar Island's Pokémon Lab http://i.imgur.com/Mx7G9Do.png and use a PP Up on your Super Glitch Pokémon's move 1 until corruption occurs. If the menu is still open successfully raise the PP of another move (the move list may change at this point) to close the menu.
2. Your name will now have a hex:15 character in slot 5, but your party Pokémon list will become corrupted and walking around may corrupt Pokédex seen and own data. Walk to the PC.
3. Deposit Pokémon 1, Pokémon 2, Pokémon 1, Pokémon 2 in that order, then deposit Pokémon 2 continuously until you run out of Pokémon to deposit. (warning: if you save the game your save file will be destroyed after you reset, so don't reset the game yet)
4. Withdraw your Pokémon with Fly and Surf and your LM4 with its specific moves, then Fly to Cerulean City.
5. Go to this spot http://glitchcity.info/wiki/File:IFCG_spot_2.png and view the status of your LM4 here until your name changes (a hex:50 is added to the second slot, but you keep the hex:15 character for Mew in slot 5). You are now free to save the game but if you try to do it via the save option the game may bring up a freezing text box, so instead change boxes or go to heal Pokémon at a Pokémon Center to fix the save options.
6. Fly to Viridian City and perform the old man glitch. You are now able to find Mew and catch it without corrupting the save file after you try to save! Sadly this method removes the ability to encounter MissingNo. and 'M (00) with the old man glitch and duplicate items. Normally without Super Glitch at least one of these are always available with the old man glitch.

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