Brock through walls
0x1500 control code arbitrary code execution (Crystal) | Cart-swap arbitrary code execution | Generation I custom map script pointer | Generation I invalid meta-map scripts | Generation I item ("8F", "ws m", "-g m", "5かい", "てへ" etc.) | Generation I move ("-", "TM42") | Generation I Trainer escape glitch text boxes | Generation II bad clone | Generation II Burned Tower Silver | Japanese Crystal Pokémon Communication Center SRAM glitches | Coin Case glitch | Generation II glitch Pokédex sortings | Pikachu off-screen glitch ACE | OAM DMA hijacking | Pikachu glitch emote | Generation III glitch Pokémon summary | Generation III glitch move animation) | Remote code execution | TM/HMs outside of the TM/HM pocket | ZZAZZ glitch Trainer FC
No further extensions
Cloning | Item duplication glitch (Generation I) | Pokémon merge glitch ("Q Glitch", Generation I) | Time Capsule exploit | Bug-Catching Contest data copy glitch (Generation II, Japan only) | Berry glitch | Battle Tower Lati@s glitch (Generation III) | (Mimic) Transform Rage glitch (Generation IV)
Transform held item glitch (Generation IV, Japan only) | Mimic glitch (Generation IV, Japan only)
99 item stack glitch | LOL glitch | Rival LOL glitch | Instant LOL glitch | RAM LOL glitch | Out of bounds LOL glitch | blockoobLG | Instant encounter infinite chain glitch | LGFly | Super Glitch (Generation I) | Party remaining HP glitch | Super Glitch (Generation III) | Text pointer manipulation mart buffer overflow glitch | CoolTrainer♀-type move | Double distort CoolTrainer♀ corruption | Yami Shop glitch | Party Pokémon box data shift glitch | Unterminated name glitch item instant encounter (Japanese Red/Green)
Item stack duplication glitch (Generation I)
Generation I expanded items pack (Glitch Rocket HQ maps, Map FE (English and non-English European Yellow) | Map script pointer manipulation (arbitrary code execution | Map script pointer item ball manipulation) | Text pointer manipulation (arbitrary code execution | Item ball manipulation | Mart buffer overflow) | Trainerless instant encounter glitch
Bad clone glitch (Generation II)
????? party overloading (Type 0xD0 move glitch | ????? map corruption | Celebi trick | Celebi Egg trick | Shiny Celebi trick | Glitch move map corruption | Overloaded party map corruption | Glitch Unown (Glitch Unown map corruption) | Duplicate key items glitch (Infinite items and item creation, Expanded Balls pocket (Wrong pocket TM/HMs, Glitch Pokédex categories))
Closed menu Select glitches (Japanese Red/Green)
Dokokashira door glitch (International) | Fossil conversion glitch (international) | Second type glitch | Skip to Level 100 glitch | Trainer mutation glitch | Walk through walls (International) | Lift glitch | Badge describer glitch
Pomeg glitch (Generation III)
Pomeg data corruption glitch ("Glitzer Popping") | Charm glitch
Voiding (Generation IV)
Broken escalator glitch (Japan only) | Elite Four door glitch (Japan only)
2x2 block encounter glitches (Generation I)
Left-facing shore tile glitch (in-game trade shore encounter trick, Old man trick, Trade link up shore encounter trick, Fight Safari Zone Pokémon trick) | Viridian Forest no encounter grass tiles glitch
Safari Zone exit glitch | RAM manipulation | Out of bounds Glitch City (Generation II) | Slowpoke Well out of bounds corruption (French Gold/Silver/Crystal)
Large storage box byte shift glitch
Storage box remaining HP glitch | Generation I max stat trick
SRAM glitches
Generation I save corruption | 255 Pokémon glitch | Expanded party encounter table manipulation (Generation I) | Send party Pokémon to a new game (Generation I) | Generation II save corruption | Mailbox glitches | Mystery Gift item corruption | Trainer House glitches
Death-warp | Ditto trick | Experience underflow glitch | Mew trick | Text box ID matching | Meta-map script activation
Ledge method | Museum guy method | Rival's effect | Select glitch method (International Select glitch method), Brock Through Walls
Grass/rock Surfing glitch (Spanish/Italian only) (adaptions: Submerge glitch (international)) | 8 8 (0x7C) grass/rock surfing glitch (English Red/Blue))
Brock Through Walls (Youngster path manipulation walk through walls) is a walk through walls glitch in Pokémon Red, Green, Blue, and Yellow.
The "walk through walls" GameShark code has always been fun and useful to people. Contrary to popular belief, a similar effect is possible without the use of a game-altering device via a glitch. It is possible to perform the "Brock Through Walls" glitch very early in the games (except in Pokémon Yellow because the Youngster cannot be skipped in this version.
Because it shouldn't be possible to talk to the Youngster from the right, the developers never programmed a path for the Youngster to follow when the player is right of the Youngster. When talking to him, the game looks for the player's coordinates but never finds them, resulting in a softlock.
However, the player is able to write some pseudo-data in RAM, which leads the game into doing the same as the walk through walls trick (museum guy method)
Requirements
The player must have performed the Skip Pewter Gym glitch, and either saved and restarted the game, or walked outside of Pewter City then back, one tile east of the Youngster.
Japanese Pokémon Red, Green, and Pokémon Blue (Japanese)
- Have a Rattata (or any Pokémon with the same mini-sprite) in the third party slot.
- Have a Charmander (or any Pokémon with the same mini-sprite) in the fourth party slot.
Once this setup is done, flash the Pokémon menu at least once.
International Pokémon Red and Blue
Have a Bulbasaur meeting the following requirements :
- It must be level 8
- It must be the last Pokémon in your party
- It must know exactly three attacks :
- The second attack's PP must be exactly 16
- The third attack's PP must be exactly 36
Once this is done, flash Bulbasaur's stat screen.
Or it is possible to do the following instead :
- The first Pokémon's Special stat should be 16.
- The second Pokémon should be a Pidgey with 15 HP left.
- However, there should be no Rattata mini-sprite in the first two positions, or else the game will softlock.
Pokémon Yellow
In Yellow the first Gym can't be skipped the same way as in Red and Blue. However, if the player makes it to the right side of the Youngster, this glitch is still possible.
- The last party Pokémon must know four moves.
- It must have 10 PP left on its third move, and 36 PP left on its last move.
- It must be level 100.
- Its maximum HP must be in range 256-511.
Once it is done, flash its status screen.
Procedure
Once the player stands on tile right from the Youngster and performed to correct action (listed in the corresponding Requirement sub-section) :
- Talk to the Youngster, and close his dialog.
- You will walk automatically and the menu should keep popping up. Hold B when the menu is closed to walk around in any direction.
Video Demonstration
YouTube demonstration by ChickasaurusGL