List of glitches (Generation I): Difference between revisions

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This is a '''list of glitches''' that occur in the [[Generation I]] [[main series]] [[Pokémon games]].
{{merge|List of glitches in Generation I}}
The '''Cut glitch''' can refer to two different glitches in [[Generation I]] involving the move {{m|Cut}}.


==In Pokémon Red and Green==
==Standing on a tree==
===Dokokashira door glitch===
{{main|Dokokashira door glitch}}
 
===Prevented progress===
If the player's [[starter Pokémon]] evolves before they obtain their [[Pokédex]] from Prof. Oak, the game will assume, since they have 2 Pokémon registered as caught, that they already have a Pokédex, and will not allow them to proceed. This glitch is only present in the Japanese {{game|Red and Green|s}}.
 
{{youtubevid|OS-v0tGk90g|ChickasaurusGL|Normal}}
 
===Second type glitch===
{{main|Second type glitch}}
 
==In Pokémon Red and Blue==
 
===Evolutionary stone glitch===
{{GlitchResearch|Glitch Pokémon which evolve by items}}
Pokémon can be evolved without the use of an [[evolutionary stone]], provided that the player has sent out a Pokémon with the equivalent identifier of the relevant evolutionary stone item and finishes the battle with that Pokémon in the same battle that a Pokémon that evolves using an evolutionary stone levels up.
 
Some [[glitch Pokémon]]<!--which ones?--> with unusual evolutionary flags may evolve this way according to the game 'after exposure to an item', which is not necessarily an evolutionary stone.
 
{| style="margin:auto; background: #fff; {{roundy}} border: 5px solid #333399"
|-
! style="background: #333399; color:white; {{roundytl|5px}}" | Pokémon
! style="background: #333399; color:white; {{roundytr|5px}}" | {{color2|FFF|Evolutionary stone|Stone}}
|- style="background: #D8D8F2;"
| {{p|Exeggutor}}
| {{evostone|Moon Stone}}
|- style="background: #E5F2D8;"
| [[Missingno.]]{{tt|*|decimal index number 32}}
| {{evostone|Fire Stone}}
|- style="background: #D8D8F2;"
| {{p|Psyduck}}
| {{evostone|Leaf Stone}}
|- style="background: #E5F2D8;"
| {{p|Growlithe}}
| {{evostone|Thunderstone}}
|- style="background: #D8D8F2;"
| {{p|Onix}}
| {{evostone|Water Stone}}
|}
{{youtubevid|C3H-zaU6GPs|Wooggle}}
 
===Item duplication glitch===
{{main|Item duplication glitch}}
 
===Lift Key glitch===
[[File:RB Lift Key Glitch.png|thumb|right|256px|The Lift Key glitch]]
In the [[Rocket Hideout]], if the player is standing to the left of the {{tc|Team Rocket Grunt}} who has the {{key|III|Lift Key}} and talks to him, the Lift Key will appear underneath the player when he drops it. The player can still move around and collect it if he moves downward.
 
This glitch was fixed in {{game|Yellow}}, [[Pokémon FireRed and LeafGreen Versions|FireRed and LeafGreen]] due to the Grunt automatically dropping the Lift Key as soon as he is defeated.
{{-}}
 
{{youtubevid|ykjE6rKWSug|Wooggle}}
 
===Man on roof===
If the player does not have the {{key|I|Secret Key}} to the [[Cinnabar Gym]], and {{m|surf}}s on the east coast and returns to land directly in front of the Gym, a man will appear on the roof of the Gym.
 
A similar effect happens if the player walks into the [[Vermilion Gym]], walks directly left and then up so that they are facing the bottom-left trash can and press A to inspect it, or if the player is in the gate to [[Kanto Route 17|Cycling Road]]. One of the Trainers in the Gym will be misplaced and return to his usual spot once the text box disappears, and when in the gate there may be a man standing on an object somewhere behind the guard.
 
Both of these variations of this glitch were fixed in some European versions of Red and Blue, such as the Spanish version, as well as all versions of Yellow.
 
{{youtubevid|RCL6UTBUqDk|Wooggle}}
 
The glitch doesn't happen in the Yellow version, though it contains a typo instead.
===Old man glitch===
{{main|Old man glitch}}
 
===Pewter Gym skip glitch===
{{main|Pewter Gym skip glitch}}
 
===Prof. Oak text overlap glitch===
If player has no new data or hasn't bought Poké Balls after defeating rival on {{rt|22|Kanto}}, Prof. Oak will give Poké Balls to player after talking to him. However, one of the lines of his dialogue appear over previous line, instead on new one.
{{youtubevid|XPJB7CJ5XFU|Dukstless|red}}
 
==In all Generation I games==
===--===
{{main|-- (move)}}
If a {{p|Ditto}} transforms into another Pokémon and then switches around the copied moves with the Select button, after the battle the Ditto will not have {{m|Transform}} and will instead have {{m|--}}.
 
{{youtubevid|hzY0nFn_8SE|Wooggle}}
 
===0 ERROR===
{{main|0 ERROR}}
A glitch similar to the [[Mew glitch]] that causes {{rt|6|Kanto}} to become glitched.
 
===0 PP glitch===
In Generation I, {{m|Struggle|struggling}} can be avoided by allowing the game to self-select a move to be used, which can happen to any move used immediately after a Pokémon is {{status|Freeze|defrosted}}, or due to a handful of moves' effects ({{m|Bind}}, {{m|Clamp}}, {{m|Fire Spin}}, {{m|Hyper Beam}}, {{m|Metronome}}, {{m|Mimic}}, and {{m|Wrap}}) because of the auto-selection involved with {{cat|moves that partially trap|partial-trapping moves}}. A move used with 0 {{PP}} in this way would {{wp|arithmetic underflow|underflow}} to the maximum possible value, 63 PP, and, due to the way the data is structured, a move that 0 [[PP Up]]s had been used on would gain full PP Up status, while those on which PP Ups had been used would lose one PP Up boost. This glitch was addressed in Generation II games and later, which prevent a move from being executed if it has 0 PP.
 
===Bide glitch===
The stored damage from {{m|Bide}} can hit (but not always) a Pokémon under the invulnerable stage of {{m|Fly}} or {{m|Dig}}. If Bide deals damage to a Pokémon under Fly or Dig, the game will reveal its sprite early. This also causes a small animation glitch with Dig where it appears that the enemy Pokémon rises from the ground off the top of the screen instead of the enemy rising up from 'underground'. There is no animation glitch with {{m|Fly}} because the game has no animation on the opponent's side of Fly returning from the top of the screen to the ground—the game only reveals the sprite.
 
{{youtubevid|mpHw7CPQdQY|ChickasaurusGL|normal}}
 
===Cable Club escape glitch===
{{main|Cable Club escape glitch}}
 
===Cerulean Cave guard glitch===
The person who is guarding Cerulean Cave seems to disappear if the player moves to the left until the game turns from blue to green.
 
===Critical hit ratio boost glitch===
{{m|Focus Energy}} and {{DL|Battle item|Dire Hit}} <!--Dire Hit as well?--> were intended to quadruple the {{DL|Damage modification|critical hit}} rate, but due to a glitch, they instead have no effect if the user is faster than the opponent, or prevent the user from getting a critical hit (0/511 chance) if the user is slower than the opponent. <ref>[http://hax.iimarck.us/files/rbymoveinfo.txt R/B/Y move information - IIMarck.us]</ref> <ref>[http://www.psypokes.com/lab/criticalhits.php Psypoke - Pokémon Games Critical Hit]</ref> This was fixed in {{g|Stadium}}.
 
===Cut glitch===
{{main|Cut glitch}}
 
===Cycling Road glitch===
If the player does not have a [[Bicycle]] (or it has been deposited in the PC), it is still possible to reach [[Kanto Route 17|Cycling Road]] by holding down the left button while the guard attempts to prevent the player from entering the Cycling Road. Upon entering Cycling Road, the player will be automatically riding a bike, despite not having one.
 
{{youtubevid|OCyYJHf-apw|Wooggle}}
 
===Deposit glitch===
It is possible for the player to deposit all Pokémon except [[fainting|fainted]] ones and a [[black out]] will occur but only after four steps in the same session. In {{2v2|Red|Blue}} it is possible to progress further by saving the game before traveling four steps to reset the 'remaining step count' to 4 when the game is reset, though this is no longer the case in {{game|Yellow}} because the remaining step count was changed to default to 1 step. The player immediately has a black out if entering a battle with just fainted Pokémon.
 
===Draw audio glitch===
Prior to [[Generation II]], having the player character draw in a [[Pokémon battle]] causes the victory theme to play even though the player has lost.
 
{{youtubevid|HDWoG2BCGbU|ChickasaurusGL|Normal}}
 
===Dual-type Pokémon glitch===
In [[Generation I]], Pokémon with two types that have a weakness and resistance to the same type receive neutral damage from that type, but the incorrect message is displayed.
 
For example, {{type|Grass}} moves do neutral damage to {{p|Gyarados}}, but if Gyarados is hit by a Grass-type move, the game erroneously states that the attack is "not very effective...".
 
The game prioritizes on which message to display for each 'special' scenario (where normal damage is not dealt) based on each scenario's internal ordering. The higher the ordering determines what message the game will display. Grass against Water as 200% damage for instance is the 4th entry, whilst Grass against Flying as 50% damage is the 27th. Consequently in this example the game chooses the message for scenario #27, returning the wrong message "It's not very effective...".
 
This glitch does not occur in {{eng|Pokémon Stadium}}.
 
{{youtubevid|yP6EhW2r57A|Wooggle}}
 
If an attack is super effective or not very effective against one type and does no damage against another type (for example, {{m|Dig}} against {{p|Charizard}}), the game will erroneously state that the attack missed.
 
====Order of priority of messages====
Messages higher on the list take priority to those lower on the list. This list is the reverse order to which they are stored in the game data, which is likely the order they were added to the game.
 
{| style="margin:auto; background: #{{unknown color light}}; {{roundy|1em}}; border: 5px solid #{{unknown color}};"
|-
|
{| border=1 width="100%" style="margin:auto; text-align:center; background: #FFFFFF; border:1px solid #{{unknown color light}}; border-collapse:collapse;"
|-
! Attacking type
! Effectiveness
! Defending type
|-
{{typetable|Dragon}}
| 2×
{{typetable|Dragon}}
|-
{{typetable|Ice}}
| 2×
{{typetable|Dragon}}
|-
{{typetable|Grass}}
| ½×
{{typetable|Dragon}}
|-
{{typetable|Electric}}
| ½×
{{typetable|Dragon}}
|-
{{typetable|Water}}
| ½×
{{typetable|Dragon}}
|-
{{typetable|Fire}}
| ½×
{{typetable|Dragon}}
|-
{{typetable|Ghost}}
| 0×
{{typetable|Psychic}}
|-
{{typetable|Ghost}}
| 0×
{{typetable|Normal}}
|-
{{typetable|Rock}}
| 2×
{{typetable|Ice}}
|-
{{typetable|Rock}}
| 2×
{{typetable|Bug}}
|-
{{typetable|Rock}}
| 2×
{{typetable|Flying}}
|-
{{typetable|Rock}}
| ½×
{{typetable|Ground}}
|-
{{typetable|Rock}}
| ½×
{{typetable|Fighting}}
|-
{{typetable|Rock}}
| 2×
{{typetable|Fire}}
|-
{{typetable|Bug}}
| 2×
{{typetable|Poison}}
|-
{{typetable|Bug}}
| ½×
{{typetable|Ghost}}
|-
{{typetable|Bug}}
| 2×
{{typetable|Psychic}}
|-
{{typetable|Bug}}
| ½×
{{typetable|Flying}}
|-
{{typetable|Bug}}
| ½×
{{typetable|Fighting}}
|-
{{typetable|Bug}}
| 2×
{{typetable|Grass}}
|-
{{typetable|Bug}}
| ½×
{{typetable|Fire}}
|-
{{typetable|Psychic}}
| 2×
{{typetable|Poison}}
|-
{{typetable|Psychic}}
| 2×
{{typetable|Fighting}}
|-
{{typetable|Flying}}
| ½×
{{typetable|Rock}}
|-
{{typetable|Flying}}
| 2×
{{typetable|Grass}}
|-
{{typetable|Flying}}
| 2×
{{typetable|Bug}}
|-
{{typetable|Flying}}
| 2×
{{typetable|Fighting}}
|-
{{typetable|Flying}}
| ½×
{{typetable|Electric}}
|-
{{typetable|Ground}}
| 2×
{{typetable|Poison}}
|-
{{typetable|Ground}}
| 2×
{{typetable|Rock}}
|-
{{typetable|Ground}}
| ½×
{{typetable|Bug}}
|-
{{typetable|Ground}}
| ½×
{{typetable|Grass}}
|-
{{typetable|Ground}}
| 2×
{{typetable|Electric}}
|-
{{typetable|Ground}}
| 2×
{{typetable|Fire}}
|-
{{typetable|Poison}}
| ½×
{{typetable|Ghost}}
|-
{{typetable|Poison}}
| ½×
{{typetable|Rock}}
|-
{{typetable|Poison}}
| 2×
{{typetable|Bug}}
|-
{{typetable|Poison}}
| ½×
{{typetable|Ground}}
|-
{{typetable|Poison}}
| ½×
{{typetable|Poison}}
|-
{{typetable|Poison}}
| 2×
{{typetable|Grass}}
|-
{{typetable|Fighting}}
| 0×
{{typetable|Ghost}}
|-
{{typetable|Fighting}}
| 2×
{{typetable|Ice}}
|-
{{typetable|Fighting}}
| 2×
{{typetable|Rock}}
|-
{{typetable|Fighting}}
| ½×
{{typetable|Bug}}
|-
{{typetable|Fighting}}
| ½×
{{typetable|Psychic}}
|-
{{typetable|Fighting}}
| ½×
{{typetable|Flying}}
|-
{{typetable|Fighting}}
| ½×
{{typetable|Poison}}
|-
{{typetable|Fighting}}
| 2×
{{typetable|Normal}}
|-
{{typetable|Ice}}
| 2×
{{typetable|Flying}}
|-
{{typetable|Ice}}
| 2×
{{typetable|Ground}}
|-
{{typetable|Ice}}
| 2×
{{typetable|Grass}}
|-
{{typetable|Ice}}
| ½×
{{typetable|Water}}
|-
{{typetable|Grass}}
| ½×
{{typetable|Flying}}
|-
{{typetable|Grass}}
| 2×
{{typetable|Rock}}
|-
{{typetable|Grass}}
| ½×
{{typetable|Poison}}
|-
{{typetable|Grass}}
| ½×
{{typetable|Flying}}
|-
{{typetable|Grass}}
| 2×
{{typetable|Ground}}
|-
{{typetable|Electric}}
| 2×
{{typetable|Flying}}
|-
{{typetable|Electric}}
| 0×
{{typetable|Ground}}
|-
{{typetable|Water}}
| 2×
{{typetable|Ground}}
|-
{{typetable|Fire}}
| ½×
{{typetable|Rock}}
|-
{{typetable|Fire}}
| 2×
{{typetable|Bug}}
|-
{{typetable|Ghost}}
| 2×
{{typetable|Ghost}}
|-
{{typetable|Normal}}
| 0×
{{typetable|Ghost}}
|-
{{typetable|Normal}}
| ½×
{{typetable|Rock}}
|-
{{typetable|Electric}}
| ½×
{{typetable|Grass}}
|-
{{typetable|Water}}
| ½×
{{typetable|Grass}}
|-
{{typetable|Grass}}
| ½×
{{typetable|Fire}}
|-
{{typetable|Fire}}
| ½×
{{typetable|Water}}
|-
{{typetable|Psychic}}
| ½×
{{typetable|Psychic}}
|-
{{typetable|Grass}}
| ½×
{{typetable|Grass}}
|-
{{typetable|Ice}}
| ½×
{{typetable|Ice}}
|-
{{typetable|Electric}}
| ½×
{{typetable|Electric}}
|-
{{typetable|Fire}}
| ½×
{{typetable|Fire}}
|-
{{typetable|Water}}
| ½×
{{typetable|Water}}
|-
{{typetable|Ground}}
| 0×
{{typetable|Flying}}
|-
{{typetable|Water}}
| 2×
{{typetable|Rock}}
|-
{{typetable|Electric}}
| 2×
{{typetable|Water}}
|-
{{typetable|Grass}}
| 2×
{{typetable|Water}}
|-
{{typetable|Fire}}
| 2×
{{typetable|Ice}}
|-
{{typetable|Fire}}
| 2×
{{typetable|Grass}}
|-
{{typetable|Water}}
| 2×
{{typetable|Fire}}
|}
|}
 
===Error codes===
{{main|Error codes}}
 
===Experience underflow glitch===
{{main|Experience#Experience underflow glitch}}
In Generations I and II, level 1 Pokémon using the "medium-slow" growth algorithm will jump from level 1 to level 100 after gaining a {{tt|low amount|less than 54 if total experience is 0}} of experience points.
 
{{youtubevid|QgRA_Ot4R0U|Dukstless|Red}}
 
===Fire Spin Glitch===
{{youtubevid|O8GMyy7x3WE&NR|SloshedMail|Normal}}
 
===Fishing in statues===
The player can use a [[Fishing|Fishing rod]] when facing the right or left of a gym statue. It will always say "Looks like there's nothing in here...", except in the [[Cerulean Gym]], where all the [[Pokémon]] obtainable in the Gym can be caught. The player is also able to surf on these statues.
 
===Gate glitch===
Certain [[gate]]s<!--which ones?--> which can be accessed after the player passes [[Cycling Road]] will have guards that restrict the player from passing if the [[Bicycle]] is deposited in the PC, even though the player does not require a Bicycle.
 
===Getting rid of Pikachu===
If the player uses Pikachu to surf (this was intended to be possible), when the player gets back on land Pikachu will disappear.
 
===Ghost glitch===
When encountering a {{OBP|Ghost|literal|ghost}} in [[Pokémon Tower]] without having a [[Silph Scope]], it is possible to see its true identity by viewing the stats of any Pokémon in the player's party. However, this glitch is only graphical, and it is still impossible to [[Pokémon battle|fight]] or catch it.
 
===Ghost Marowak glitch===
Using a [[Poké Doll]] on the {{OBP|Marowak|ghost|ghost Marowak}} in [[Pokémon Tower]] with or without the [[Silph Scope]] will cause it to permanently disappear.
 
===Glitch City===
{{main|Glitch City}}
 
===Guy outside lab glitch===
If the player stands outside of Professor Oak's Lab in Pallet Town, the person outside it will eventually stand on the Lab's door.
 
{{youtubevid|EuD_Q8MhhxE|Wooggle}}
 
===Hall of Fame glitch===
[[File:Halloffameglitches.png|thumb|right|160px|Some corrupted Hall of Fame entries]]
{{main|Missingno.#Glitches caused}}
When [[glitch Pokémon]] have been seen on the save file, the player's [[Hall of Fame]] is badly corrupted with entirely different Pokémon, even glitch Pokémon, and very glitched characters, names and levels. This does not affect the Pokémon themselves, rather the data seen in the Hall of Fame.
 
==={{m|Haze}} glitch===
If {{m|Haze}} is used to thaw a frozen Pokémon when it still needs to recharge from {{m|Hyper Beam}}, the Pokémon will thaw out but it will be unable to make a move until it faints even if a {{t|Fire}} type move is used later. This glitch was fixed in [[Pokémon Stadium]]. It is similar to the [[Sky Drop glitch]] in [[Generation V]], because both glitches permanently make the opponent unable to move until fainting or switching (although switching out the Pokémon is normally not possible).
 
{{youtubevid|FjZreYA2m_w|ChickasaurusGL|Poison}}
(Glitch starts at 1:56)
 
===Index 000 post-capture===
In [[Generation I]], if the player manages to capture an [['M (00)]], an invisible wild {{p|Ditto}} will still be in battle with the player where 'M (00) was before, and the battle will not end. This Ditto can then be caught.
 
===Invisible PC===
In Generation I, there is an invisible PC in the hotel in [[Celadon City]]. This fact is explained by the close resemblance between the hotel and a Pokémon Center. This was less a glitch, and more likely an oversight by the programmers, who may have forgotten to remove the code to activate the PC at that particular point. The sprite of the PC, however, is not there. It is possible to walk on the tile where the PC is. This glitch was fixed in Pokémon Yellow.
 
{{youtubevid|odGZR7nKjnA|Gligar13Vids|Normal}}
 
===Invisible Prof. Oak Glitch===
If the player attempts to leave too many times when choosing their first Pokemon then the player, Prof. Oak and the middle Poké Ball's sprites will vanish. Pressing start will pull up some glitched text on the screen, but exiting the start menu will fix everything.
 
{{youtubevid|v643yIvK6pM|BungiePhantom|Normal}}
 
===Invisible tree===
{{main|Cut glitch#Invisible tree}}
There is a tree near the bottom of {{rt|14|Kanto}}. If this particular tree is cut down and then the player walks five steps west from where the tree was (so that the spot where the tree used to be is at the edge of the screen) and then walks back their path will be blocked as if a tree was still there. Even though the tree is not visible, it can still be cut down normally using the move {{m|Cut}}.
 
===Landing on an NPC===
If the player lures an NPC below a ledge that can be jumped over, it is possible to land on top of the NPC.
 
{{youtubevid|ztlm3AuPBBI|ChickasaurusGL|Normal}}
 
===Leech Seed and Toxic stacking===
If the target of {{m|Leech Seed}} is also under the effect of {{m|Toxic}}, Leech Seed damage will increase every turn as the N value of Toxic increases because Leech Seed and Toxic both use the same damage algorithm (N * max(1, int(0.0625*MaxHP). This was fixed as of [[Generation II]]. If the current {{stat|HP}} of the recipient of Leech Seed's HP-restoring effect is greater than its maximum HP, its current HP will be set equal to its maximum HP.
 
{{youtubevid|bNjEFgsIIIY|ChickasaurusGL|Grass}}
 
===Level-up moves glitch===
Pokémon cannot learn moves they should learn at a level if they earn enough experience at once to skip that level.
 
For example, if a level 6 {{p|Bulbasaur}} earned enough experience points for defeating a single Pokémon to reach level 8, it will not learn {{m|Leech Seed}}, a move it would normally learn at level 7.
 
===Leveling past 100===
In Generation I and II, if a Pokémon is obtained at a level above 100, it can be leveled up with [[Rare Candies]] up to level 255. If a Rare Candy is fed to a level 255 Pokémon, its level will be reset to 0. If a Pokémon above level 100 levels up due to [[experience]], its level will be reset to 100.
 
===Mew glitch===
{{main|Mew glitch}}
 
===Perpetual Spin Animation Glitch===
{{youtubevid|UhTQfoug8GU|BungiePhantom|Normal}}
 
===Pokémon merge glitch===
{{main|Pokémon merge glitch}}
 
===Pokémon storage system cloning===
{{main|Cloning glitches#Storage system method}}
 
===Recovery glitch===
If a Pokémon uses {{m|Softboiled}}, {{m|Rest}} or {{m|Recover}} and the difference between its current HP and maximum HP is 255 or 511, the move will fail. This bug does not occur in Pokémon Stadium.
 
{{youtubevid|sqkBby1HlmY|ChickasaurusGL|Normal}}
 
===Rhydon glitch===
{{main|Rhydon glitch}}
 
===Save Surf glitch===
The glitch is performed by standing next to a [[water tile]] that is facing up, left, or right, walk in that direction and pressing start without letting go of the D-Pad. The game then needs to be [[save]]d and reset. When loading the saved data, the player will be facing in the direction that was being held down when the start button was pressed. Using {{m|Surf}} will cause the player to surf on the tile immediately south, even if it is not a water tile.
 
When loading a saved file, the player usually starts facing south. This is because of the limited data in the game. This glitch causes the player to face in a different direction, which confuses the game.
 
{{youtubevid|W_aI_AVwJMQ|Wooggle}}
 
===Save corruption glitch===
This is technically 2 glitches in 1. In order to do the first glitch, the player has to save the game, and turn it off at just the right time. The player will have 255 Pokemon, most of which are random [[Pokémon]] and [[Charizard 'M]]s. Each Pokémon in your [[Party|party]] represents a part of the game data. If the player switches the second and tenth Pokémon, the player will have 255 items. Switching/tossing the items has a much greater impact on the game than switching the Pokémon.
 
==={{m|Selfdestruct}}/{{m|Explosion}} and {{m|Substitute}} glitch===
In {{3v2|Red|Blue|Yellow}} using a sacrificial move like Explosion on a substitute and having the damage break the substitute prevents the user from fainting. The sprite of the user vanishes regardless.
 
{{youtubevid|lr05doU5oAQ|ChickasaurusGL|Normal}}
 
===Silent Indigo Plateau glitch===
In the battle against {{ga|Blue}} at [[Indigo Plateau]], if the player [[evolution|evolves]] a Pokémon in battle and defeats Blue, the music will be muted until [[Professor Oak]] comes to congratulate the player.
 
(Video comparing the battle where a {{p|Caterpie}} evolves, to the same battle where no Pokémon evolves):
{{youtubevid|KxMstD8iWNM|ChickasaurusGL|Normal}}
 
===Sprite glitch===
[[File:Sprite glitch.png|thumb|170px|right|The sprite glitch as seen in [[Generation I]] games, in this case triggered by the encounter of [[♀ .]]]]
The '''sprite glitch''' is a [[glitch]] that alters the appearance of the {{wp|Sprite (computer graphics)|sprites}} in [[Generation I]], making the sprites appear to be cut into pieces or even unrecognizable in some instances.
 
In [[Generation I]], many [[glitch Pokémon]] will distort battle sprites upon their encounter; however, this can be fixed by viewing the stats of a non-glitched Pokémon. There are other methods to the glitch, some of which involve using a [[Pokémon Center]] to heal the player's Pokémon when in a glitched area, visiting [[Glitch City]], or catching certain glitch Pokémon.
 
In other generations, it may occur when a [[Cheating|cheating device]] is used.
 
{{-}}
===S.S. Anne reboard glitch===
[[File:Pokemon Red Reboard SS Anne.png|thumb|right|The player surfing on top of the sailor]]
After the [[S.S. Anne]] leaves the dock for the first time, it's possible to make it reappear earlier. To perform this glitch, the player must stand one tile above and to the left of the sailor guarding the harbor, take a step right and hit the Start button at the same time, save and reboot. After verifying that the player is facing right and without moving, a Pokémon must be selected to {{m|Surf}}, thus making the player surf on top of the sailor. Then, after walking down to the harbor, the boat can be entered.
{{-}}
 
{{youtubevid|W_aI_AVwJMQ|Wooggle}}
 
===Standing on a tree===
[[File:Cut glitch.png|thumb|right|220px|{{ga|Red}} standing on top of the tree outside [[Vermilion Gym]]]]
[[File:Cut glitch.png|thumb|right|220px|{{ga|Red}} standing on top of the tree outside [[Vermilion Gym]]]]
{{main|Cut glitch#Standing on a tree}}
This glitch causes the {{player}} to appear on top of a cuttable tree. In order to perform the glitch, the player must have the {{badge|Cascade}} and a [[party]] Pokémon that knows {{m|Cut}}.
In [[Generation I]], if the player {{m|cut}}s down a tree, stands on the spot where the object was, [[Saving|saves]], turns the game off, then loads it, the player will be standing on the tree. It is no longer possible to stand on a tree in later generations, nor is it possible to stand on a boulder.


This glitch occurs because the [[Generation I]] engine would not store the data needed to remember that the tree had been cleared. [[Generation II]] does not remember this data either, but is not susceptible to the glitch.
If, upon cutting down the tree, the player saves the game while standing in the spot where the tree originally stood before being cut down, and turns off the power, the player will be standing on top of a tree when the game is reloaded.  


===Stuck in a wall===
===Mechanics===
If the player lures an NPC into the grass above [[Pallet Town]], she will block the player from following [[Professor Oak]] correctly, causing the player to become stuck in the wall of Oak's laboratory.
This glitch occurs because in [[Generation I]], these trees are part of the map tiles. Since the save system did not store the changes to the map tiles on screen, this caused the maps to be fully rendered without changes upon game load. However, in [[Generation II]], an exception was implemented so if any tile on screen had changed from default before the game save, it was saved too.


===Trade cloning===
Due to an overhaul in [[Generation III]], the glitch is no longer present. In this generation onwards, these trees are no longer map tiles, but actors (much like NPCs), and the save file is now able to remember the state and position of all actors.
{{main|Cloning glitches#Trading method}}


===Transform assumption glitch===
{{youtubevid|3gDZoRA0az8|Wooggle}}
In Generation {{gen|I}} and {{gen|II}}, any Pokémon that uses {{m|Transform}} is regarded as a {{p|Ditto}} in its new form; this means that if the player catches a {{p|Mew}} or a [[glitch Pokémon]] which has used the move Transform, or a Pokémon which has used Transform via {{m|Mirror Move}}, instead they will obtain a Ditto. Mew turning into Ditto was not an issue, because wild Mew could not have been be legitimately encountered. This system was later changed in Generation III, where wild Mew could be encountered.


===ZZAZZ glitch===
==Invisible tree==
{{main|ZZAZZ glitch}}
This glitch involves a tree near the bottom of {{rt|14|Kanto}}.


==Glitches involving communication with the Generation II games==
If this particular tree is cut down and then the player walks five steps west from where the tree was (so that the spot where the tree used to be is at the edge of the screen) and then walks back their path will be blocked as if a tree was still there. Even though the tree is not visible, it can still be {{m|cut}} down normally.
===Johto guard glitch===
The tree apears when you {{m|cut}} it.
{{main|Johto guard glitch}}


===Shiny Ditto glitch===
{{youtubevid|jdLLNZ2JkyY|Wooggle}}
The Shiny Ditto glitch requires a game from [[Generation I]] and [[Generation II]], but only has an effect on a Generation II game. By trading any [[Shiny Pokémon]] to a Generation I game, having a wild {{p|Ditto}} transform into that Pokémon, then catching and trading the Ditto into a Generation II game, the Ditto will be Shiny.


===Trade evolution glitch===
[[Generation I]] Pokémon that can evolve by trading can be taught glitch moves through this glitch. This can be achieved by trading a trade evolution Pokémon from a Generation I game to a Generation II, at a level where its evolved form will learn a move not in Generation I. Trading the Pokémon back to the Generation I game will cause the move to become a glitch move.
For example, trading a level 34 {{p|Graveler}} from {{game3|Red and Blue|Pokémon Red|s}} to {{game3|Gold and Silver|Pokémon Gold|s}} will make the Graveler evolve into {{p|Golem}}. Since it is level 34, it will learn {{m|Rollout}}. If it is then traded back to Pokémon Red, it will still have the move, but the game won't recognize it properly since it is a Generation II move, so will become {{m|TM05}}.
==References==
<references/>
{{-}}
{{Glitches}}<br>
{{Glitches}}<br>
{{Project GlitchDex notice}}
{{Project Glitchdex notice|no}}
 
[[Category:Glitches]]
[[Category:Glitches by game]]
[[Category:Lists]]


[[de:Bugs in der ersten Generation]]
[[zh:一字斩漏洞]]
[[zh:游戏漏洞(第一世代)]]

Revision as of 17:47, 25 June 2013

082Magneton.png The contents of this article have been suggested to be merged into the page
List of glitches in Generation I.

Please discuss it on the talk page for this article.

The Cut glitch can refer to two different glitches in Generation I involving the move Cut.

Standing on a tree

Red standing on top of the tree outside Vermilion Gym

This glitch causes the player to appear on top of a cuttable tree. In order to perform the glitch, the player must have the Cascade Badge and a party Pokémon that knows Cut.

If, upon cutting down the tree, the player saves the game while standing in the spot where the tree originally stood before being cut down, and turns off the power, the player will be standing on top of a tree when the game is reloaded.

Mechanics

This glitch occurs because in Generation I, these trees are part of the map tiles. Since the save system did not store the changes to the map tiles on screen, this caused the maps to be fully rendered without changes upon game load. However, in Generation II, an exception was implemented so if any tile on screen had changed from default before the game save, it was saved too.

Due to an overhaul in Generation III, the glitch is no longer present. In this generation onwards, these trees are no longer map tiles, but actors (much like NPCs), and the save file is now able to remember the state and position of all actors.

By Wooggle
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.


Invisible tree

This glitch involves a tree near the bottom of Route 14.

If this particular tree is cut down and then the player walks five steps west from where the tree was (so that the spot where the tree used to be is at the edge of the screen) and then walks back their path will be blocked as if a tree was still there. Even though the tree is not visible, it can still be cut down normally. The tree apears when you cut it.

By Wooggle
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.



Multiple
generations
Transform glitchesGlitch TrainersCloning glitchesError messagesArbitrary code execution
Generation I GlitchesBattle glitchesOverworld glitches
--0 ERRORBroken hidden itemsCable Club escape glitchDual-type damage misinformation
Experience underflow glitchFight Safari Zone Pokémon trickGlitch CityItem duplication glitchItem underflow
Mew glitchOld man glitchPewter Gym skip glitchPokémon merge glitchRhydon glitchRival twins glitch
Select glitches (dokokashira door glitch, second type glitch) • Super Glitch
Time Capsule exploitWalking through wallsZZAZZ glitch
Generation II GlitchesBattle glitches
Bug-Catching Contest glitchCelebi Egg glitchCoin Case glitchesExperience underflow glitch
Glitch dimensionGlitch EggTeru-samaTime Capsule exploitTrainer House glitchesGS Ball mail glitch
Generation III GlitchesBattle glitches
Berry glitchDive glitchPomeg glitchGlitzer Popping
Generation IV GlitchesBattle glitchesOverworld glitches
Acid rainGTS glitchesPomeg glitchRage glitch
Surf glitchTweakingPal Park Retire glitch
Generation V GlitchesBattle glitchesOverworld glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Frozen Zoroark glitchSky Drop glitch
Generation VI GlitchesBattle glitchesOverworld glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Lumiose City save glitchSymbiosis Eject Button glitchToxic sure-hit glitch
Generation VII GlitchesBattle glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Toxic sure-hit glitchRollout storage glitch
Generation VIII Glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Toxic sure-hit glitchRollout storage glitchParty item offset glitch
Generation IX Glitches
Glitch effects Game freezeGlitch battleGlitch song
Gen I only: Glitch screenTMTRAINER effectInverted sprites
Gen II only: Glitch dimension
Lists Glitches (GOMystery DungeonTCG GBSpin-off)
Glitch Pokémon (Gen IGen IIGen IIIGen IVGen VGen VIGen VIIGen VIII)
Glitch moves (Gen I) • Glitch types (Gen IGen II)


Project GlitchDex logo.png This article is part of Project GlitchDex, a Bulbapedia project that aims to write comprehensive articles on glitches in the Pokémon games.