Lucas is a character from the EarthBound (or Mother) series, who debuted in the Japan-only game, Mother 3. In this game, he lived with his brother Claus and his parents Hinawa and Flint, in Tazmily village located in the Nowhere Islands. Soon after the beginning of the game, his mother is killed and his brother disappeared, mainly because of the Pig Mask Army of Porky.
 Super Smash Bros. Brawl
Lucas appears in Super Smash Bros. Brawl as a playable character, one of the two representatives from the EarthBound series. Lucas's special moveset is almost exactly like Ness's from the previous games, but with a few minor tweaks. All his normal moves, and Smash Attacks, however, are completely different. He also uses the Rope Snake as his Grab move, as well as his Tether Recovery move. Lucas is seen with a common stick for his forward smash attack, in contrast to Ness' baseball bat. Lucas's home stage is New Pork City.
Lucas was originally meant to replace Ness in Super Smash Bros. Melee. However, Mother 3 for the Nintendo 64 (at that time, unofficially known as EarthBound 64 in America), was cancelled, but later revived for the Game Boy Advance in 2003 and released in 2006 in Japan only. As such, Ness was kept in Super Smash Bros. Melee to avoid confusion.
 Role in the Subspace Emissary
Lucas first appears alone in the Ruined Zoo. He is attacked by The Pig King Statue, but Ness arrives to save him. They proceed to fight Porky, but then Wario arrives with his Dark Cannon and attempts to hit Ness with it. Ness dodges his attacks, so Wario tries to attack Lucas instead. Lucas doesn't move out of the way, so Ness ends up taking the hit himself. Lucas, scared, runs away and meets the Pokémon Trainer, and they join to fight the Subspace Army, as Lucas cannot forget what Wario had done to Ness.
Outside the Ruins, the Pokémon Trainer decides to capture a Charizard that flew by. Before entering them, however, they are ambushed by Wario. They defeat him, but Lucas becomes disappointed that Wario doesn't have Ness with him anymore. After capturing Charizard and an Ivysaur inside the Ruins, Lucas and the Pokémon Trainer reach the Ruined Hall, where they are attacked by Galleom. After defeating him, Galleom takes them and starts flying into the air, with a Subspace Bomb in his head about to go off. Lucas frees himself and the Pokémon Trainer, and they are then saved by Meta Knight, whose team they then join.
At the Glacial Peak, Meta Knight leaves them, but they are then joined by the Ice Climbers as the Subspace Army is sent out to attack them. Mario, Link, Yoshi, Kirby and Pit then appear and defeated the enemies. Soon, the other remaining heroes show up and they enter Subspace together. Unfortunately, Lucas and the others were defeated by Tabuu. But then Lucas is saved by King Dedede, who had revived Ness and Luigi with badges. All of the revived heroes then fight and defeat Tabuu.
 Solid Snake Codec Conversation
 Special Moves
 PK Freeze
PK Freeze is the standard Special move of Lucas in Super Smash Bros. Brawl. When Lucas uses the attack, he controls the freezing PSI and can throw it across the screen much faster and with a much greater reach than PK Flash. However, the attack is difficult to use, as when Lucas is hit, the move will stop instantly, forcing Lucas to resort to using PK Freeze from far away most of the time. Kirby has the ability to use PK Freeze when he absorbs Lucas's powers.
 PK Fire
PK Fire is an attack used by Lucas in Super Smash Bros. Brawl. It is Lucas's Side Special Move in this game. Unlike Ness, who will fire the PK Fire downwards if he's in mid-air or near a ledge, Lucas always shoots the fire forward, even in mid-air. After the attack hits a player, or hits the ground, it will burst into a pillar of fire, causing more damage to anyone caught in it. However, the pillar only lasts for a very short time, limiting the damage to just one hit (the initial).
 PK Thunder
PK Thunder is an attack that Lucas can perform in Super Smash Bros. Brawl. It is his Up move, and is a guidance attack, as well as a recovery attack. Once executed, Lucas will shoot out a blast of electricity, which he will then guide across the field. Best used when far away, it can be used to hit foes from a distance, without the risk of getting attacked. Although it lasts long, it does have an extent to how far it can go. As for the recovery side, it can be used to hit Lucas, and launch him really high up into the air, allowing him to get back to the field (if he jumps high enough). Luckily, the attack will not harm Lucas.
Compared to Ness's PK Thunder, Lucas's is easier to control, but moves slower. Also, if Lucas rams into anyone after hitting himself, he'll deliver multiple small hits, with the last hit being the most devastating, instead of one massive hit with Ness's PK Thunder. The thunderbolt can also hit enemies and continue moving through, which Ness's thunderbolt cannot.
 PSI Magnet
PSI Magnet is one of the attacks that Lucas can use in Super Smash Bros. Brawl. The attack can be done by pressing Down + Special move button. It is one of the few attacks that "absorb" attacks, rather than deflect them. Once used, any energy-matter projectiles that hit Lucas (in contrast to objects, such as items that are thrown) are absorbed, and Lucas is healed.
Unlike Ness's PSI Magnet, Lucas creates a shield in front of him, but not all around him. However, he will turn to absorb attacks from behind, if need be. Lucas's PSI Magnet shocks the foe for slight damage if he or she happens to be touching it when Lucas drops the shield.
 Rope Snake
Rope Snake is the name of Lucas's grab move, which also acts as a Tether Recovery in Super Smash Bros. Brawl. When Lucas uses a grab attack, he uses Rope Snake to grab players from afar, and reel them close to Lucas for an attack. Lucas is also able to use the Rope Snake in mid-air, allowing him to grab onto an edge to get him back to the stage, in case he is too far to get back himself.
In Mother 3, the Rope Snake was a move used only by his partner, Duster, similar to how many of Ness's moves from the last two Super Smash Bros. games were used by his partners in EarthBound, not by Ness himself.
 PK Starstorm
PK Starstorm is a Final Smash that Lucas and Ness are able to use in Super Smash Bros. Brawl. When the Smash Ball is broken open by one of the boys, he will start to glow, as the screen grows darker. They then charge up for a massive attack, and then releases all the stored energy into the sky. Once this is done, massive PSI Comets start smashing onto the ground from the sky, causing a massive amount of damage when it hits a player. However, more comets appear the longer the attack lasts for, which can cause other players to get hit a lot easier. Because the attack is from the skies, the comets hit all over the stage, so dodging it is no easy task. PK Starstorm has a much better chance of hitting the opposing players when used on smaller stages, and is less handy on larger stages, with the largest stage being, ironically, New Pork City. But, PK Starstorm is not entirely useless on large stages. When used by Lucas, the comets come straight down; however, when used by Ness, the comets come at an angle.
 Super Smash Bros. Brawl Trophies
 Names in Other Languages