WikiBound logo.png Looking for ways to help out? Check out the to-do list, and add any other tasks that need to be done.

Please participate in our poll regarding which name should be used for Mother/EarthBound Beginnings.

PK Thunder

From WikiBound, your source on Mother/EarthBound information. By fans, for fans!
Jump to:navigation, search
PK Thunder PSI Thunder
PKサンダー PK Thunder
PK Thunder
PK Thunder α in Mother 3
Ranks α (Alpha)
β (Beta)
γ (Gamma)
Ω (Omega)
Target Enemy
PSI category Attack
Appears in EarthBound Beginnings
Mother 3
Super Smash Bros.
For Nintendo 3DS and Wii U
Learned by Ana
Ness (Smash Bros. only)
Lucas (Smash Bros. only)

PK Thunder is a PSI attack, introduced in EarthBound Beginnings. It is a electricity-based attack that summons bolts of lightning to strike random targets, with more being called down at higher stages. PK Thunder can be reflected by the Franklin Badge in EarthBound and Mother 3. PK Thunderis learned by Ana in EarthBound Beginnings, Paula and Poo in EarthBound, and Kumatora in Mother 3.


The user causes a lightning bolt to strike an opponent for electrical damage. In EarthBound Beginnings characters with the Earth Pendant equipped will be resistant to it, while in EarthBound and Mother 3 the Franklin Badge will reflect the lightning back at the user.

In EarthBound Beginnings PK Thunder can be aimed at any chosen opponent, unlike in its successors. This is also the only game where the Franklin Badge will not reflect the attack, as instead it reflects the lethal PK Beam γ. Oddly PK Thunder does not have an Ω tier and only goes up to γ, the reason for this is unknown.

PK Thunder was completely overhauled in EarthBound and Mother 3: now the move no longer allows the user to choose a target, instead it targets a random opponent with a chance to miss, in Mother 3 its accuracy is noticeably higher than in EarthBound. The accuracy of PK Thunder is higher when more enemies are present. The number of times PK Thunder strikes increases with each tier: PK Thunder α strikes once, β strikes twice, γ strikes thrice, and Ω strikes four times. PK Thunder will also remove any PSI Shields that have been put up, and in Mother 3 it alsp has a chance of paralyzing a target.

The "Crashing Boom Bang" attack in EarthBound is functionally identicle to PK Thunder and so can also be reflected by the Franklin Badge.

Learnset and damage output

In EarthBound Beginnings

Rank Effect PP Characters Level learned
α 10-12 points of damage to one enemy 3 Ana 2
β 48-55 points of damage to one enemy 6 Ana 9
γ 48-55 points of damage to all enemies 12 Ana 28

In EarthBound

Rank Effect PP Characters Level learned
α 60-180 points of damage to one random enemy 3 Paula
β 60-180 points of damage to two random enemies 7 Paula
γ 100-300 points of damage to three random enemies 16 Paula
Ω 100-300 points of damage to four random enemies 20 Poo 55
  • The probability of Thunder hitting an enemy is calculated as Number of foes/4, and the probability will not decrease if some enemies are defeated before the attack is finished. There is also no elemental resistance for thunder, meaning the damage will never decrease. In addition, PSI Thunder will also erase psychic shields or psychic power shields protecting any combatants it connects with.

In Mother 3

Rank Effect PP Characters Level learned
α 120-130 points of damage to one random enemy, 15% chance of paralysis 7 Kumatora 12
β 120-130 points of damage to two random enemies, 15% chance of paralysis 15 Kumatora 32
γ 170-230 points of damage to three random enemies 21 Kumatora 49
Ω 170-230 points of damage to four random enemies 32 Kumatora 57

In the Super Smash Bros. series

PK Thunder is Ness's Special Up move, available in all Super Smash Bros. games. He can redirect it at himself to fire himself at enemies, which does much damage. In Super Smash Bros. Brawl, PK Thunder is once again Ness' Special Up move, but is also now Lucas'. Lucas' is different in the fact that it can move through enemies, while Ness' can't.


Alpha, Beta
PK Thunder α and β in Mother 3
Gamma, Omega
PK Thunder γ and Ω in Mother 3
PSI in the Mother series
PK BeamPK FirePK FlashPK FreezePK GroundPK LovePSI RockinPK StarstormPK Thunder
LifeupHealingPSI MagnetRefresh
PSIShieldPowerShieldShieldPSI ShieldCounterPSI CounterOffense UpDefense UpQuickUpOffense DownDefense DownHypnosisParalysisBrainshockDarknessShield-OffPSI-Block
TelepathyTeleport4th-D Slip
Personal tools
Helpful Pages