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PSI Rockin

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This article's subject will have a different name in-game if the player uses a non-default name.
PSI Rockin
PKキアイ PK Kiai
PSI Rockin γ in EarthBound
Ranks α (Alpha)
β (Beta)
γ (Gamma)
Ω (Omega)
Target All enemies
PSI category Attack
Appears in EarthBound
Learned by Ness

PSI Rockin (Japanese: PKキアイ PK Fighting Spirit), also referred to PK Rockin is Ness's signature PSI attack, only appearing in EarthBound. It does a large amount of damage to all enemies, with the power varying between ranks. Ness's Nightmare and Giygas (when inside the Devil's Machine) also know this attack.

The attack's name is determined by what is chosen as the player's "favorite thing" at the beginning of the game.


When Ness uses PSI Rockin, psychedelic lights and sounds are displayed dealing high damage to all enemies, while also having the possibility of decreasing one of the targets' PSI Shield's strength by 1. PSI Rockin Ω is one of the most powerful PSI attack in the game, dealing up to 960 damage to a target, only rivaled by PK Starstorm Ω and PK Freeze Ω. Because PSI Rockin is not part of any element there is no Pendant that can protect against it.

PSI Rockin can be seen as the successor to PK Beam from EarthBound Beginnings as they are both non-elemental PSI attacks, with the only exceptions being it is multi-targeting instead of single target (sans PK Beam Ω) and it is Ness's exclusive move.

In EarthBound

Rank Effect PP Characters Level learned
α 40-120 points of damage to all enemies 10 Ness 8
β 90-270 points of damage to all enemies 14 Ness 22
γ 160-480 points of damage to all enemies 40 Ness 49
Ω 320-960 points of damage to all enemies 98 Ness 75
  • Rockin' has a chance to miss its target, based on the following calculation: (((2 * target's speed) - Ness's speed) / 5).

Enemies in EarthBound that can use this attack

PSI Rockin α

PSI Rockin β

PSI Rockin Ω


  • PSI Rockin is one of the only offensive PSI attacks that can miss (excluding PK Flash).

Default names

English Japanese
  • Rockin
  • Hammer
  • Love
  • Gifts
  • Slime
  • Gaming
  • Boxing
  • キアイ Fighting Spirit
  • ズバン Kapow
  • LOVE Love
  • ゴール Goal
  • チャンピオン Champion

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
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