Symbiosis Eject Button glitch

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Reason: Testing these items: King's Rock/Razor Fang, Rowap/Jaboca Berry, Wise Glasses/Muscle Band, Expert Belt, Lax Incense/Bright Powder, Power item (both effects)

The Symbiosis Eject Button glitch is present in the core series Generation VI games: Pokémon X, Y, Omega Ruby, and Alpha Sapphire.

The glitch was first documented by YouTube user 1212 Weedle in this video.

In Generation VII, the Eject Button no longer triggers Symbiosis, so the glitch does not occur.

Performing the glitch

If an ally's Eject Button is consumed, Symbiosis will activate and transfer an item to that ally after it switches out but before its replacement is sent out. Any item transferred in response to an Eject Button activating cannot activate at this time.


When this Pokémon is switched in again, the Pokémon's item will be affected by a glitch which may cause the item's effect to be applied twice. This behavior lasts until the Pokémon is switched out, or until the Pokémon's item is removed or moved to another Pokémon. The items affected by this glitch are:

  • Black Sludge will hurt or heal the holder twice per turn (the item activation animation will display each time).
  • Sticky Barb will hurt the holder twice (the item activation animation will display each time).
  • Life Orb will apply its damage boost twice, and decrease the holder's HP twice.
  • Rocky Helmet will inflict damage twice.
  • Destiny Knot will activate twice. If the other Pokémon has a Mental Herb, it will be used up upon the first activation, only to be infatuated again a second time.
  • Shell Bell will heal the holder twice (the item activation animation will display each time).
  • Leftovers will heal the holder four times (the item activation animation will display twice, once before applying, once after healing twice).
  • The Metronome applies twice. The two multipliers are applied in sequence, each capping after 6 consecutive uses of a move. This means that the move's power becomes 1.44× on the 2nd consecutive use (1.2×1.2), 1.96× on the 3rd consecutive use, 2.56× on the 4th consecutive use, 3.24× on the 5th consecutive use, and 4× from 6 consecutive uses onward.
  • Stat-stage boosting held items, such as the Weakness Policy and Salac Berry, will boost stats twice (the item activation animation will only display once). The Starf Berry can increase a different stat each time.
  • HP-restoring Berries and Berry Juice will heal twice (even if the Pokémon heals above the activation threshold after the first heal), unless they are activated upon switching in (in which case they will only activate once).
  • Damage-reducing Berries will quarter the damage instead of halving it (although the activation message will only be displayed once).
  • The Scope Lens and Razor Claw will boost the holder's critical hit stage by 2 instead of 1.
  • The following items have their passive boosts applied twice: Choice Band, Choice Specs, Choice Scarf, Muscle Band, Wise Glasses, type-enhancing items (including Plates and Incense), stat-increasing items (including the Assault Vest and Eviolite), Float Stone, Big Root, Iron Ball.

Some items are only affected in trivial ways:

  • The Quick Claw and Power Herb will display their activation messages twice.
  • The Air Balloon will display the floating message twice (but will only display the burst message once).


Gems and the Lansat Berry are unaffected. Items consumed via Fling, Natural Gift, Bug Bite, and Pluck are unaffected.


By avos5
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.

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 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 VIIISpin-off)
Glitch Pokémon (Gen IGen IIGen IIIGen IVGen VGen VIGen VIIGen VIII)
Glitch moves (Gen I) • Glitch types (Gen IGen II)

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