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Glitch City WRAM manipulation - stored PC items overflow (Generation I)

3,540 views 路 Published 18 September 2015 路 16:39 路 Indexed 23 October 2026

Channel: Evie (ChickasaurusGL) 馃尯 路 2015 路 Gaming

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Read the description for more information:
This trick found by Krys3000 developed based on ISSOtm's out of bounds Glitch City for CoolTrainer manipulation trick via stored items (itself based on TheZZAZZGlitch's discovery that Glitch Cities can take their blocks from game variables in writable memory (e.g. nicknames) and cutting trees there may affect the memory https://www.youtube.com/watch?v=KSWob-e6i5U - video of nickname manipulation to get blocks for 94 https://www.youtube.com/watch?v=WD_GVaQwn8o) enables you to change the number of stored items in the PC from 50 to 109.

After performing the glitch, three of the major things that the player can do include with the expanded PC items include:

1) Changing an item such as the quantity of a PC item like item 100 to 1 (Cerulean City script) to set up an artificial Trainer-Fly (https://www.youtube.com/watch?v=YRoN7_KWTTU) that depends on the last Special stat in memory; so encountering a Ditto and having it Transform into a Pok茅mon with a Special stat of 21 will allow you to get Mew and no Trainers are needed.

2) Withdrawing 255 of an item x256 (as there are typically many in an expanded stored items list), then proceeding to set up dry underflow (https://youtu.be/ZyppANEvnh8?t=139), after which
:-The player can manipulate unrelated memory addresses from the 20+ normal items pack (e.g. item 22=money byte 1 quantity, item 36 quantity=exit destination where 118=Hall of Fame)
:-You can perform dry underflow with an item like X Special x1 in the inventory, and use it for TheZZAZZGlitch's "get any glitch item" trick (video: https://www.youtube.com/watch?v=98_azamLeh4), including ACE glitch items 8F and ws m. 

3) Change map scripts. Do this with care and don't save if you don't know how you affected it. e.g. setting PC i.92 to Revive in Yellow gives interesting Pallet Town music.

This trick is notable for being a clean method of getting 8F or ws m and encountering Mew that does not require Missingno., a free Trainer for Trainer-Fly, or CoolTrainer (which can stop working).

The only requirements for the glitch are that you have exactly 50 stored PC items, a Pok茅mon with Cut and Fly/Teleport (and the badges to use them), to pull off an applicable walk through walls glitch, and make careful steps in a Glitch City:

Examples of suitable WTW glitches:
1) The traditional ledge method (shown at the beginning of this video) that only needs a poisoned Pok茅mon/or all fainted Pok茅mon (R/B) http://glitchcity.info/wiki/index.php/Walk_through_walls_trick_(ledge_method)

If you are one step right of the first Safari Zone sign with 115 steps, you can make the exact same steps as you leave as I do to ensure your steps run out on the ledge (thanks to PRAMA Initiative for the idea of getting a specific number of steps left to ensure the glitch works.

2) The Pewter City museum guy WTW glitch - it works for the glitch, but has the side effect of opening the menu or making you move automatically if you do not move while holding B. (video: https://www.youtube.com/watch?v=DX4vQlgdBCM) http://glitchcity.info/wiki/index.php/Walk_through_walls_trick_(museum_guy_method)

As the old man trick does not work in Pok茅mon Yellow for duplicating items, using Glitch City RAM manipulation to overflow the stored PC items may be particularly useful in Pok茅mon Yellow if you have beaten all compatible long-range Trainers/death warp Trainers, cannot get the hex:00 move/get its corruption to work for duplicating items by catching Missingno., and do not have a link cable to encounter Missingno. via the Cable Club escape glitch.

Steps:
1) Ensure you have 50 PC items, then pull off the relevant walk through walls glitch.
2) Walk to a specific spot south of Fuchsia City (pictured left), then walk left until you make the first step into some water (pictured right). http://i4.minus.com/i7qTiDxE8fSch.png
3) Make some specific steps:
:-85 steps up
:-1 step down
:-8 steps left
:-7 steps up
:-42 steps west
:-5 steps up
:-3 steps west

(Important NOTE: These steps still need to be double-checked and tested on Red/Blue instead of Yellow. I will check them again shortly. If in doubt, watch the video and pause often.)

If you made the right steps, it should make you face right of a tree (http://i4.minus.com/iElDWOXqQ3dDh.png note: the player is facing right of the tree but is invisible).

The tiles surrounding the tree most likely won't look the same, because this is a RAM based Glitch City, but if you made those steps and are facing right of this block (http://i4.minus.com/ibjMHpidFDoW78.png), you're likely in the right place.
4) Cut the tree. This changes the ID of the block from 0x32 (50) to 0x6D (109) and you just changed the quantity of your stored PC items from 50 to 109.
5) Now the choice is yours of what you would like to do with the overflowed PC items. Examples of what you can do can be found below the second paragraph of the description.

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