Amazing Man (Red and Blue only) | Cable Club escape glitch | Celadon looping map trick | Champion Blue music muting glitch | Coastal Flooding | Confusion and Substitute glitch | Cooltrainer move | Cycling based glitch maps | Escape sprite handling glitch | Evolve without an evolutionary stone (Red and Blue only) | Evolving Raichu (Red and Blue only) | Expanded item pack | Expanded Pokédex | Focus Energy glitch | Get stuck in a wall | Ghost Bicycle glitch | Glitch encounter system | Glitch City RAM Manipulation | Infinite Blaine Door | Introduction Nidorino glitch (Red and Blue only) | Invisible PCs (Red and Blue only) | Invisible tree glitch | Item stack duplication glitch | Mute the music in the Pokémon League | Partial trapping move link battle glitch | Pokémon Tower Pokédex glitch | PP underflow glitches | Recovery move glitch | Rival's effect | See a Ghost without a Silph Scope | Selfdestruct and Substitute glitch | Silph Co. PC Glitch | Slot machine glitch | Stand on a tree | Statue behavior glitch (Red and Blue only) | Super effective move AI flaw (Red and Blue only) | Super Glitch | Surf down glitch | Swift miss glitch | Transform assumption glitch | Transform Empty Move Glitch | Trick Zone | Vending machine purchase glitch | Walk around with only fainted Pokémon (Red and Blue only) | Walking lag glitch | Walk on water through Surf | Walking Pikachu happiness glitch (Yellow only) | Wild appeared! | ZZAZZ Glitch
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Template:Japan_only2 The Swift miss glitch is a glitch in Pokémon Red and Green, Pokémon Blue (Japanese) and Pokémon Yellow (Japanese) where the move Swift (called スピードスター "Speed Star") may miss if the target Pokémon doesn't have a Substitute up.
How to performFirst, you need a Pokémon that knows the move Swift. Various Pokémon learn it through level-up, including Pikachu, Sandshrew, Sandslash, Magnemite, Magneton, Voltorb, Electrode Staryu and Mewtwo. A girl in the Route 12 gate 1F gives the player TM12, which teaches Swift.
When using Swift, the move may miss if the player has no Substitute up ; however, it will always hit a Substitute.
The girl's description of the move is : わざマシン３９は スピードスター という わざよ この わざは めいちゅうりつが すごく たかいの まけられない しょうぶの とき やくに たつ はずよ
TM39 is a move called Speed Star. This move's accuracy rate is very high. During a battle you can't lose it should be useful.
(Thanks IceFlame for the translation) However, the video down below showcases a Pikachu's Swift missing against a Pikachu who used Double Team several times.
Swift has a 1/256 chance of missing anyways, and is affected by Accuracy-reducing and Evasion-raising moves.
This glitch was fixed in all English versions, but the fix introduced the Substitute drain move not missing glitch.
VideoREDIRECT Template:YouTube (happens near 2:40 for Pokémon Yellow (Japanese), though it's not obvious if you're not fluent in Japanese)
SourceThanks to IceFlame for the research.
Original GCLf thread