PK Fire

PK Fire is a PSI attack appearing in every installment in the MOTHER / EarthBound series and as a special attack used by Ness and Lucas in the Super Smash Bros. series. In the original Super Smash Bros. it is Ness's neutral special move; since Super Smash Bros. Melee, however, it is the side special move of both Ness and Lucas, Ness gaining PK Flash as his new neutral special move. When used, Ness and Lucas throw a bolt of lightning from their fingertips, Ness's traveling at a downward arc, while Lucas's travels directly forward; in addition, when Lucas fires the bolt, it pushes him back a set distance. The attacks upon hitting something are also different; Ness's creates a pillar of fire that deals continuous damage until it disappears, while Lucas's bursts into a fire that hits once.

In Super Smash Bros. for Nintendo 3DS / Wii U, Ness is given two custom variants for this move. The first is PK Bonfire, which fires a bolt of lightning that does not travel as far or as fast, but the fire it creates upon hitting lasts longer. The second is PK Fire Burst, which behaves similarly to Lucas's PK Fire.

Ness also uses PK Fire for his down throw.

Trivia

 * In Super Smash Bros. Melee, the trophy for Paula suggests that she taught him this move along with PK Thunder, since Ness cannot learn these moves in EarthBound; no explanation is offered for Lucas, however, since he also cannot learn this move.