Glitch name |
Games |
Exploit/nature
|
2x2 block encounter glitches |
Pokémon Red and Blue (English, French, German) |
Viridian Forest no encounter grass tiles glitch: Disable encounters. Left-facing shore tile glitch: Encounter unintended Pokémon and Trainers; old man trick; in-game trade shore encounter trick, trade link up shore encounter glitch, fight Safari Zone Pokémon trick.
|
99 item stack glitch |
Pokémon Red and Blue (English, Japanese), Yellow (Japanese) |
Data corruption: Change badges, break an exit mat, warp.
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Activating events while facing the wrong way |
Pokémon Red, Green, Blue, Yellow |
Talk to people from the wrong side, activate a PC from the wrong side, temporarily destroy objects other than the Card Key (Red, Green, Blue JP)
|
Amazing Man |
Pokémon Red and Blue |
Unexpected NPC sprite placement.
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Articuno binoculars cry glitch |
Pokémon Red, Green, Blue (Japanese), German Blue |
Articuno cry audio distortion; make Articuno's cry sound like Nidoking.
|
Bicycle music hole glitch |
Pokémon Red and Blue |
Have the Bicycle music play while walking.
|
Bide fainted Pokémon damage accumulation glitch |
Pokémon Red, Blue, Yellow |
A glitch involving faulty Bide damage programming (for accumulated Bide damage) for when a Pokémon faints. It can result in a desync in a link battle.
|
Bide non-damaging move/action damage accumulation glitch |
Pokémon Red, Blue, Yellow |
A glitch in which Bide damage from the previous attacking move is accumulated even if a specific non-damaging move (such as Conversion) was used.
|
Bide sprite glitch |
Pokémon Red, Blue, Yellow |
Reveal the sprite of a Pokémon that used Fly or Dig early; cause an animation error after attacking a Pokémon that used Dig with Bide damage.
|
Bike Shop instant text glitch |
Pokémon Red and Blue |
Temporarily gain access to instant text until the next menu, Pokémon Center or Yes/No box.
|
Blaine Super Potion glitch |
Pokémon Red and Blue |
Blaine can use a Super Potion on his Pokémon even if it has full HP.
|
Boulder switch glitch |
Pokémon Yellow (Japanese) v1.0, Rev A, Rev B |
Having the walking Pikachu stand on any of the boulder switches in Victory Road except for the one on 1F can remove the relevant wall(s) as if the player pushed a boulder on to the switch. Fixed in "Rev 3" and the localizations.
|
Broken hidden items glitch |
Pokémon Red and Green (Japanese) |
Hidden items become unobtainable by the Itemfinder, or the Itemfinder detects a hidden item at the wrong place (even if it does not exist); exploit: bring a select few hidden items back by passing over a fossil.
|
Cable Club escape glitch |
Pokémon Red and Blue, Yellow (not a natural glitch in Yellow) |
Battle another Trainer's Pokémon outside of the Cable Club; battle a glitch Trainer roster; use another Trainer's glitch Pokémon for item duplication, item conversion or number of items expansion; use another Trainer's name for left-facing shore tile glitch yields; get the Reset button outside the Cable Club.
|
Cable Club Glitch City transition |
Pokémon Yellow |
See a momentary Glitch City/split Cable Club room.
|
Closed menu Select glitch |
Pokémon Red, Green, Blue (Japanese) |
(Japanese Red, Green, Blue): Swapping Pokémon and/or moves from on or beyond the end slot and the memory corruptions based on this (e.g. dokokashira door glitch, fossil conversion glitch); (Red/Green v1.0): Partial switch glitch.
|
Coastal Flooding |
Pokémon Red and Blue |
Incorrect border tile appearance.
|
Confusion and Substitute glitch |
Pokémon Red, Blue, Yellow |
Deal damage to another Pokémon's Substitute when a Pokémon under a Substitute hurts itself in confusion.
|
Counter glitches |
Pokémon Red, Blue, Yellow |
“Counter a healing item” (both the user and foe), the opponent “counter your switch”, counter a selected move which wasn't used one one side and desync a Link Battle.
|
Cycling Road sign glitch |
Pokémon Red, Blue, Yellow |
Cannot read a sign due to being on the wrong map.
|
Disappearing NPC glitch |
Pokémon Red, Blue, Yellow |
Make an NPC disappear by going to another map where they do not exist.
|
Dual-type damage misinformation |
Pokémon Red, Blue, Yellow |
Have the game give the wrong effectiveness message for a dual-typed Pokémon.
|
Empty party glitch |
Pokémon Red, Green, Blue (Japanese) |
Open the Pokémon menu with no Pokémon.
|
Escape sprite handling glitch |
Pokémon Red, Green, Blue, Yellow |
See the player's sprite temporarily replaced with a flipped "ABCD" square (or flipped "アイウエ" square in Japanese versions) if not playing in Super Game Boy mode after Teleport, Dig or using an Escape Rope.
|
Evolve without an evolutionary stone |
Pokémon Red and Blue |
Evolve Pokémon without an evolutionary stone.
|
Exp. All glitch |
Pokémon Red, Blue, Yellow |
An apparent discrepancy in experience gained by Pokémon with an Exp. All due to the experience being based on one Pokémon rather than all Pokémon.
|
Freeze top move selection glitch |
Pokémon Red, Blue, Yellow |
Use the first move automatically even if it has 0 PP, obtain 63 PP on the move with full PP Ups applied, possibly remove a PP Up. (link battle glitch)
|
Get stuck in a wall |
Pokémon Red, Blue, Yellow |
Become trapped in a wall and be forced to reset, have the player walk through walls when being guided, have Oak walk through the Pallet Town lady.
|
Ghost Bicycle glitch |
Pokémon Red, Blue, Yellow |
Prevent using the Bicycle and Surfing via a Pokémon outside of Cycling Road.
|
Go on Cycling Road without a Bicycle |
Pokémon Red, Blue, Yellow |
Enter Cycling Road without a Bicycle.
|
Go past the Marowak ghost without a Silph Scope |
Pokémon Red, Blue, Yellow |
Skip obtaining the Silph Scope in Rocket HQ (normally intended to get past the Marowak ghost).
|
Haze glitch |
Pokémon Red and Blue |
Cause a Pokémon thawed out from the Freeze status to still be unable to move due to a Hyper Beam recharge turn.
|
Hyper Beam automatic selection glitch |
Pokémon Red, Blue, Yellow |
Use Hyper Beam twice in a row, obtain 63 PP on Hyper Beam with full PP Ups, remove a PP Up.
|
Hyper Beam sleep move glitch |
Pokémon Red, Blue, Yellow |
Have a Pokémon that used Hyper Beam always fall asleep even if it has a status.
|
Infinite Blaine Door |
Pokémon Red, Blue, Yellow |
Become temporarily trapped.
|
Introduction Nidorino glitch |
Pokémon Red, Green, Blue, Yellow |
Unintended Pokémon cry (Nidorina instead of Nidorino).
|
Invisible PC |
Pokémon Red and Blue |
Access an invisible PC.
|
Invisible Tree |
Pokémon Red and Blue |
Have a tree reappear, but invisible.
|
Invulnerability glitch |
Pokémon Red, Blue, Yellow |
Avoid all damage except possibly from Swift, Transform, Bide(?).
|
Item jingle skip |
Pokémon Red, Green, Blue (Japanese, English), Yellow (Japanese) |
Obtain a Full Restore without the obtained sound effect, save some slight time.
|
Landing on an NPC |
Pokémon Red, Blue, Yellow |
Have Red appear over an NPC.
|
Leech Seed and Toxic stacking |
Pokémon Red, Blue, Yellow |
Have Leech Seed's damage increase every turn like Toxic.
|
Level up Transform glitch |
Pokémon Red, Blue, Yellow |
Temporarily gain back the original moves of a transformed Pokémon that levelled up.
|
Lift Key above ball glitch |
Pokémon Red and Blue |
Stand on top of the Lift Key item ball in Rocket HQ.
|
Magikarp salesman glitch |
Pokémon Red, Green, Blue (Japanese) |
Have 500 Pokédollars taken off you for a Magikarp but not getting the Magikarp.
|
Minimize and Substitute glitch |
Pokémon Red and Blue |
Cause sprites to change after viewing the status of a Pokémon after the opponent uses Minimize.
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Mr. Fuji's house door glitch |
Pokémon Red, Blue, Yellow |
Be blocked when trying to leave Mr. Fuji's house door.
|
Mute Fuchsia City or Cerulean City |
Pokémon Red, Blue, Yellow |
Mute Fucshia City or Cerulean City.
|
Mute the music in the Pokémon League |
Pokémon Red, Blue, Yellow |
Mute Blue's room in the Hall of Fame.
|
NPC binoculars glitch |
Pokémon Red, Blue, Yellow |
Prevent NPCs from moving by holding down A.
|
NPC collision bypassing glitches |
Pokémon Red and Blue |
Have an NPC ignore collisions with other objects in their movement.
|
NPC moonwalk glitch |
Pokémon Red and Blue |
Have an NPC walk backwards.
|
NPC walking behavior glitches |
Pokémon Red and Blue |
Limit an NPC's movement when it moves too far, and eventually make it completely stuck; (in Japanese versions only) trap the player against an NPC; limit an NPC's movement when it is on the right or bottom border of the screen.
|
Oak's Parcel prevented progress glitch |
Pokémon Red and Green (Japanese), Pokémon Yellow (not a natural glitch) |
Prevent game progress past Viridian City.
|
Old man full box glitch |
Pokémon Red, Green, Blue (Japanese) |
Have the old man fail to catch Weedle due to the full box message.
|
Partial trapping move Mirror Move link battle glitch |
Pokémon Red and Blue |
Cause Link Battle desyncronization.
|
Partial trapping move wrong side fainting glitch |
Pokémon Red and Green v1.1 |
Faint the user with more than 0 HP but be able to send it out again with the HP it previously had. Cause Link Battle desyncronization.
|
Pewter Gym skip glitch |
Pokémon Red and Blue |
Continue without the first badge; Brock Through Walls.
|
Pikachu desync glitch |
Pokémon Yellow |
Force Pikachu more than one step away from the player, and not directly following the player.
|
Pikachu off-screen glitch |
Pokémon Yellow |
Pikachu happiness corruption; Pokémon emotion forcing; map corruption; freezing the game; NPC movement manipulation; corruption of a Trainer class and roster from the overworld; sign corruption; arbitrary code execution.
|
Poké Mart no items sell map corruption glitch |
Pokémon Red, Green, Blue, Yellow (Japanese) |
Temporarily corrupt the tilemap of a Poké Mart.
|
Pokémon cloning (Generation I) |
Pokémon Red, Green, Blue, Yellow |
Obtain a copy of an existing Pokémon.
|
Pokémon switch message glitch |
|
Have the incorrect switch message appear, provided the foe gains more HP than it lost before the user switches Pokémon.
|
Pokémon Tower Pokédex glitch |
Pokémon Red, Blue, Yellow |
Register a Pokémon in the Pokédex without it appearing fully.
|
PP restore glitch |
Pokémon Red, Blue, Yellow |
Restore PP even when PP is at its maximum (for no effect).
|
Professor Oak's lab music glitch |
Pokémon Red and Blue |
Have a simplified, slower version of Professor Oak's lab music play instead of the intended music.
|
Professor Oak's lab tilemap corruption glitch |
Pokémon Red and Blue |
Make the player and Blue invisible, causing temporary tile columns to appear when opening the menu.
|
Psychic/Psywave/Night Shade animation glitch |
Pokémon Red, Blue, Yellow |
The row of the top three pixels on the screen do not shake.
|
Psywave desync glitch |
Pokémon Red, Blue, Yellow |
Desynchronize a Link Battle.
|
Recovery move glitch |
Pokémon Red, Blue, Yellow |
Have Softboiled, Recover or Rest fail.
|
Reflect/Light Screen stat overflow glitch |
Pokémon Red, Blue, Yellow |
Have a move freeze the game due to a Pokémon having excessive defensive stat (1024 or 1026) or deal much less damage than it is supposed to for other stats greater than 1023.
|
Safari Zone exit glitch |
Pokémon Red, Blue, Yellow |
Access Glitch Cities
|
Saffron Gym glitch |
Pokémon Red and Green (Japanese) |
Obtain the Marsh Badge by losing to Sabrina.
|
Save A button held glitch |
Pokémon Red, Green, Blue, Yellow |
Keep the start menu up after saving for as long as the A button is held down.
|
Seafoam Islands glitch text boxes |
Pokémon Red, Green, Blue (Japanese) |
Display glitch dialog, have the game reset itself, slow down menus.
|
See a Ghost without a Silph Scope |
Pokémon Red, Blue, Yellow |
Identify a Silph Scope ghost without the Silph Scope, but have it still act as the Silph Scope ghost.
|
Selfdestruct and Substitute glitch |
Pokémon Red, Blue, Yellow |
Remove a Pokémon's sprite, use Selfdestruct or Explosion but not faint.
|
Silph Co. 11F above lift door glitch |
Pokémon Red and Blue |
Be blocked when trying to leave the Silph Co.'s 11F.
|
Silph Co. PC glitch |
Pokémon Red and Blue |
Create a Glitch City in Silph Co.
|
Slot machine glitch |
|
A bug that prevents intended behavior for a slot machine wheel in the Celadon Game Corner to stop advancing when a 7 appears on the first wheel or a maximum of four re-rolls is reached.
|
Special menu Select glitch |
Pokémon Red, Green, Blue (Japanese) |
Lift glitch, badge describer glitch and the memory corruptions based on this.
|
SRAM glitch |
Pokémon Red, Blue, Yellow |
Start a new game with 255 Pokémon; start a new game with Pokémon from the previous save file; start a new game with Pokémon from a corrupted save file.
|
Stand on a tree |
Pokémon Red and Blue |
Stand on top of a cuttable tree.
|
Stat modification glitches |
Pokémon Red, Blue, Yellow |
Errors related to how stat bonuses and penalties work together (e.g. badge boosts, using Agility when paralyzed).
|
Statue behavior glitch |
Pokémon Red and Blue |
Surf and fish through statues.
|
Substitute drain move not missing glitch |
English Pokémon Red, Blue, Yellow |
Drain moves on a Substitute were intended to miss and miss in Japanese versions and Gold/Silver/Crystal, but due to a glitch may not miss in the English versions.
|
Substitute ¼ HP glitch |
Pokémon Red, Blue, Yellow |
Use Substitute to faint a Pokémon.
|
Super effective move AI flaw |
Pokémon Red, Blue, Yellow |
Have the foe locked on a non-damaging move.
|
Surf down glitch |
Pokémon Red, Blue, Yellow |
Surf through an impassable tile or non-water tile
|
Surf from a cliff |
Pokémon Red and Green (Japanese) |
Surf from raised ground, skip the Seafoam Islands boulder puzzle.
|
Swapping Transform moves glitch |
Pokémon Red and Blue |
Obtain “-” as the first move for CoolTrainer corruption glitches.
|
Swift miss glitch |
Pokémon Red and Green (JP) |
The move Swift doesn't always hit in Japanese versions.
|
Switch PP underflow glitch |
Pokémon Red, Blue, Yellow |
Auto select a partial trapping move, obtain 63 PP Up on a partial trapping move with full PP Ups applied, remove a PP Up.
|
Text errors |
Pokémon Red, Blue, Yellow |
See unintended typos, formatting errors or localization text errors e.g. an 'evolving Raichu'.
|
Trade evolution Time Capsule glitch |
Pokémon Red, Blue, Yellow (with a Generation II game) |
Obtain glitch moves via moves a trade evolution Pokémon learns exclusive to Generation II.
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Trainer Card transition screens |
Pokémon Red and Blue |
Have a glitchy screen show momentarily before opening the Trainer Card on a regular Game Boy (DMG mode).
|
Trainer escape glitch |
Pokémon Red, Green, Blue, Yellow |
Disable Start and battles, encounter unintended Pokémon and Trainers, access unintended scripts.
|
Transform PP restore glitch |
Pokémon Red and Blue |
Have a PP restore item work as if it was restoring an original move's PP rather than the move under Transform.
|
Trapped in Pokémon Mansion oversight |
Pokémon Red, Blue, Yellow |
Become blocked in the Pokémon Mansion.
|
Trapping move and sleep glitch |
Pokémon Red, Blue, Yellow |
Make it never a Pokémon's turn while it is asleep.
|
Vending machine purchase glitch |
Pokémon Red, Green, Blue, Yellow |
Buy a Soda Pop or Lemonade from a vending machine with less than 300 or 350 Pokédollars but more than 199 Pokédollars.
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Walk around with only fainted Pokémon |
Pokémon Red and Blue |
Receive a black out easily; enter a battle and immediately lose (if black out delayed by saving and resetting or with “il” (hex:6D)).
|
Walk on water through Surf |
Pokémon Red and Blue |
Stand on a water tile.
|
Walking Pikachu happiness glitch |
Pokémon Yellow |
Increase Pikachu's happiness quickly and easily.
|