PK Starstorm

PK Starstorm is the Final Smash of both Lucas and Ness in Super Smash Bros. Brawl. The character summons a rain of actual stars from the sky (or astronomically seen, meteorites) while yelling "PK... Starstorm!!", which strike the stage. Lucas's PK Starstorm is more effective on smaller stages and Ness's PK Starstorm is more effective in larger stages. The move differs slightly for the two characters who use it; Lucas's meteors rain downwards and slightly inwards, dealing 14% damage, whereas Ness's meteors spread out in a fan-like shape, dealing 20% damage. Ness's PK Starstorm knocks the opponent up while Lucas's knocks the opponent to the side. Lucas's PK Starstorm has meteors swarming in groups, whereas Ness's PK Starstorm comes down individually.

Ness Trophy
''Ness as he calls down a host of damage-dealing stars in his Final Smash. Everyone on the screen must dodge like crazy to avoid getting hurt, but that's no easy task. This attack appeared in the MOTHER series, but it was Poo, not Ness, who wielded it. Perhaps Poo taught Ness the secret of the attack for use in Super Smash Bros. Brawl.''

Lucas Trophy
''Lucas's Final Smash. He pulls a large group of stars from the sky and sends them smashing down among his enemies, causing damage to one and all. In MOTHER 3, this move was used by Lucas's traveling companion, Princess Kumatora. As Ness learned this move from Poo, Princess Kumatora taught Lucas when he learned he would appear in Super Smash Bros. Brawl.''

Origin
PK Starstorm is used in the later two Mother games (Earthbound and Mother 3). It is an extremely powerful attack that hits all enemies on the screen. However, it is never taught to either Ness or Lucas. In the games, it is taught to Poo in Earthbound just after the Master Barf battle in Deep Darkness, and a more powerful version (Starstorm Omega) is taught in the Cave of the Past by the Star Master. Whereas, in Mother 3, it is taught to Kumatora just before the pulling of the 6th Needle by Ionia.