PK Flash

PK Flash was one of the new moves that Ness could use in Super Smash Bros. Melee and it returns in "Super Smash Bros. Brawl". It replaced PK Fire as the B Button attack in Melee, moving PK Fire to Smash B. Ness charges up a green flash of light (hence the name), and starts charging up. He can move the attack very slowly, at will. After the player charges it as much as he/she wants, press the B Button again, and the light will explode, devastating anyone caught in it. Its power varies, depending on how much it was charged up. The attack is very hard to maneuver, as it is worthless to just use the attack without charging, and one hit will distract Ness, causing the attack to fail. PK Flash was actually a move that Ness could use in EarthBound, acting as the only one of Ness's Super Smash Bros. attacks that he could use in EarthBound.

In Super Smash Bros. Brawl, this is the only special move that Lucas doesn't from Ness, instead replaced by PK Freeze.

Kirby can copy this attack if he sucks up Ness's powers. He will even say "PK Flash", just the same as Ness does.