Acid rain

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Acid rain is a glitch in Pokémon Platinum, HeartGold and SoulSilver that results in the simultaneous occurrence of multiple types of weather at once, thus damaging all Pokémon on the field. Even though it was discovered before the English release of Platinum, it is present in all versions of the mentioned games.


BoEANSprite.png This glitch is in need of research.
Reason: This section contradicts itself. Will the glitch still occur if Diamond/Pearl is the host and that player uses Pursuit, in a link battle with Platinum/HeartGold/SoulSilver?
You can discuss this on the talk page.

If any weather effect (including Trick Room, Gravity, and Uproar, but excluding rain) is in effect, and a player of Platinum, HeartGold, or SoulSilver uses Pursuit on a Pokémon that is switching out on that turn and causes it to faint, this glitch will activate. Upon sending out the next Pokémon, the weather will have changed, and all four types of weather will be occurring at once until the end of the battle.

This will occur if the user of Pursuit is the host, even if the host game is Pokémon Diamond and Pearl.


If Trick Room, Gravity, or Uproar is in effect when the glitch is activated, they will activate the glitch, along with any other effects with priority below it. The priority is:

  1. Trick Room
  2. Gravity
  3. Uproar
  4. Fog (hurts after animation)
  5. Hail (hurts after animation)
  6. Sunshine (hurts after animation)
  7. Sandstorm (hurts after animation)
  8. Rain (hurts after animation; glitch cannot be activated using this weather)

Other moves with multiple-turn effects, such as Mud Sport, Water Sport, Tailwind, and Perish Song, will not be affected and work normally.

Even if the Pokémon is normally immune to a type of weather due to its type (Ice-type Pokémon with hail, and Rock-, Ground-, and Steel-type Pokémon with a sandstorm), they will accumulate damage four times each turn, with this message:

The foe's <Pokémon> is hurt
by its <Ability>!

However, if the Pokémon is immune to both Hail and Sandstorm, like Swinub, or if its Ability is Magic Guard, that Pokémon will be immune to all the damaging effects of this glitch.

Conversely, a Pokémon with an Ability that heals it in certain types of weather, such as Ice Body or Rain Dish, will not take damage, but instead be healed four times every turn until they are fully healed, and then, the weather will hurt it. Dry Skin, which heals in some weather and hurts in other weather, will work as it normally does, healing with one condition and hurting with the other.

Thunder and Blizzard will ignore accuracy and evasion checks, due to simultaneous rain and hail. SolarBeam will require no charging due to the sun, but its damage will also become decreased by 50% due to the other three types of weather.

If a Castform is brought into battle, its Ability will cause it to constantly transform, thus locking up the battle until the game is turned off. Castform will only transform between its Sun and Rain forms due to those particular types of weather being the first two to occur (and thus, Castform recognizes these as being the only two types of weather on the field).

Weather Ball's type is the type of the highest priority weather that can change Weather Ball's type. For example, if the glitch was performed using Harsh sunlight, Weather Ball would be Fire type. If it was performed using Gravity, it would be Ice type because hail has the highest priority of the four present weather conditions.

By Planet Poké

Transform glitchesGlitch TrainersCloning glitchesError messagesArbitrary code execution
Generation I: --0 ERRORBroken hidden itemsCable Club escape glitchExperience underflow glitch
Fight Safari Zone Pokémon trickGlitch CityItem duplication glitchItem underflowMew glitch
Old man glitchPewter Gym skip glitchPokémon merge glitchRhydon glitch
Select glitches (dokokashira door glitch, second type glitch) • Super GlitchTime Capsule exploitZZAZZ glitch
Generation II: Bug-Catching Contest glitchCelebi Egg glitchCoin Case glitchesExperience underflow glitch
Glitch dimensionGlitch EggTeru-samaTime Capsule exploitTrainer House glitchesGS Ball mail glitch
Generation III: Berry glitchDive glitchPomeg glitchGlitzer Popping
Generation IV: Acid rainGTS glitchesPomeg glitch
Surf glitchTweakingPal Park Retire glitch
Generation V: Sky Drop glitchFrozen Zoroark glitchChoice item lock glitchCharge move replacement glitch
Generation VI: Choice item lock glitchCharge move replacement glitchLumiose City save glitch
Symbiosis Eject Button glitchToxic sure-hit glitch
Generation VII: Charge move replacement glitchChoice item lock glitchToxic sure-hit glitchRollout storage glitch
Generation VIII: Charge move replacement glitchChoice item lock glitchToxic sure-hit glitchRollout storage glitchParty item offset glitch
Glitch effects: Game freezeGlitch battleGlitch song
Gen I only: Glitch screenTMTRAINER effectInverted sprites
Gen II only: Glitch dimension
Lists: Glitches (Gen IGen IIGen IIIGen IVGen VGen VIGen VIIGen VIIIGOSpin-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.