PK Flash

PK Flash is Ness's neutral special move in the Super Smash Bros. series since Super Smash Bros. Melee, replacing PK Fire, now his side special move, in the original Super Smash Bros. The move is based upon the PSI attack introduced in EarthBound. When used, a ball of light appears above Ness that can be charged by holding down the special move button, rising and falling. By releasing the special attack button, the ball of light explodes, the explosion more powerful the longer it is charged. The attack automatically explodes if it reaches the same height at which Ness used the attack; if it hits the ground or a platform before it can be detonated, however, it disappears without exploding. The angle at which the attack moves can also be adjusted by tilting the control stick left or right. If it is used in the air, Ness is left helpless after the explosion. In Super Smash Bros. for Nintendo 3DS / Wii U, PK Flash is given more range when angled behind Ness than in previous games.

Also in Super Smash Bros. for Nintendo 3DS / Wii U, there are two custom variants of this move available to unlock. The first is Rising PK Flash, which fires a pink ball of light that only rises into the air; it has a larger range but deals less damage, and cannot move as far horizontally. The second variant is PK Freeze, Lucas's version of this move; it does not deal as much damage, instead freezing opponents, and also detonates when it hits ground. This PK Freeze travels more slowly than Lucas's version, behaving more similarly to Ness's PK Flash. The frozen effect, however, is stronger than most freezing attacks, as opponents require more effort to break free out of a sweet-spotted PK Freeze.

Trivia

 * PK Flash is the only special move, including the Final Smash, PK Starstorm, for Ness that he can actually learn in Earthbound. The rest are used by either Paula or Poo.