Flash (move)

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Flash (Japanese: フラッシュ Flash) is a non-damaging move introduced in Generation I. It was HM05 from Generations I to III and TM70 from Generations IV to VI, as well as in .
==Effect==
===In battle===
====Generations I to II====
Flash decreases the target's stat by one stage. The accuracy of Flash is 70%.
In the Generation I and II core series games, when an in-game opponent outside of the uses Flash, the move has a 25% chance to fail in addition to its normal chance to miss.
====Generation III====
Flash no longer has an additional chance to fail when used by an in-game opponent.
====Generation IV to VII====
The accuracy of Flash changed to 100%.
If powered up by a Normalium Z into Z-Flash, the user's is raised by one stage.
====Generation VIII====
=====Pokémon Sword and Shield=====
Flash cannot be selected in a battle.
====Generation IX====
Flash cannot be selected in a battle.
===Outside of battle===
In certain games, Flash requires a specific badge to use outside of battle; the Boulder Badge, Zephyr Badge, or Knuckle Badge.
====Generations I to II====
Flash will illuminate dark caves. The effect will last until the player exits the cave. When the player re-enters the cave, it will be dark again.
====Generation III to V====
Flash will only illuminate a large circle around the player to increase visibility in caves.
In , , and , it will light up the entire screen as it did in Generation I.
====Generation VI====
In Pokémon X and Y, as there are no dark caves to be found, Flash will instead cause the screen to zoom out, revealing more of the surrounding area than normally is visible. In addition, it also decreases the chance of encountering wild Pokémon.
In Pokémon Omega Ruby and Alpha Sapphire, dark areas where Flash can be used to light up the surroundings are present once again. However, in this game the dark areas are shown to be more dimly lit rather than completely dark, making the move even less needed than before.
=====Zoom out=====
In X and Y, Flash may be used to zoom out the perspective in the following caves:
*Connecting Cave
*Reflection Cave
*Frost Cavern
*Terminus Cave
*
====Generation VII====
Flash is no longer usable outside of battle. In Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, the player can use Secret Technique Light Up instead.
====Generation VIII====
In , Flash can once again be used outside of battle to illuminate dark caves.
====Generation IX====
Flash is no longer usable outside of battle.
====Puzzles involving Flash====
* In Pokémon Crystal, HeartGold, and SoulSilver, Flash grants access to a hidden room in Ruins of Alph.
* In , using Flash in the Ancient Tomb grants access to a chamber where the player finds .
* In , Flash grants access to the 3rd floor of the Abyssal Ruins.
==Description==
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==Learnset==
===By leveling up===
===By TM/HM===
===Special move===
====Generation IV====
==In other games==
===Pokémon Mystery Dungeon series===
Flash lowers the target's accuracy by one stage.
===Description===
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==In animation==
===Pokémon animated series===
==In the manga==
===How I Became a Pokémon Card===
===Magical Pokémon Journey===
===Pokémon Adventures===
===Pokémon: Yeah! I Got Pokémon!===
===Pokémon Pocket Monsters===
==In other generations==
Warning:
The battle animation for Flash in Generation I and Generation II contains several short, rapid flashes that may be capable of causing epileptic seizures. 
===In battle===
====Core series games====
====Side series games====
====Spin-off series games====
===Outside of battle===
==Trivia==
* Flash is never required to advance gameplay, as darkened caves are still navigable without the move.
** There are puzzles that require it, though none of these are mandatory to complete.
* Flash is the only HM move that can be used outside of battle in Generation I, yet cannot be selected in battle in .
==In other languages==
Category:Generation I HM moves
Category:Generation II HM moves
Category:Generation III HM moves
Category:Moves that can lower the target's accuracy
Category:Moves in Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!
Category:Moves unusable in Pokémon Sword and Shield
Category:Moves unusable in Pokémon Scarlet and Violet
de:Blitz
es:Destello
fr:Flash
it:Flash
ja:フラッシュ
zh:闪光（招式）