Luigi

Luigi is a character that has been in every Smash Bros. game

In Super Smash Bros.
Luigi is an unlockable character in Super Smash Bros.

Moveset

 * Neutral: Fireball
 * Up: Super Jump Punch
 * Down: Luigi Cyclone

How to Unlock
To unlock Luigi, complete Target Test with Mario, Yoshi, Donkey Kong, Link, Kirby, Fox McCloud, & Pikachu.

In Super Smash Bros. Melee
Luigi is an unlockable character in Super Smash Bros. Melee

Moveset

 * Neutral: Fireball
 * Side: Green Missile
 * Up: Super Jump Punch
 * Down: Luigi Cyclone

How to Unlock
To unlock Luigi, finish the Adventure Mode first stage with a two in the timer. Also, he can be unlocked by playing 800 VS matches.

In Super Smash Bros. Brawl
Luigi is an unlockable character in Super Smash Bros. Brawl

Moveset

 * Neutral: Fireball
 * Side: Green Missile
 * Up: Super Jump Punch
 * Down: Luigi Cyclone
 * Final Smash: Negative Zone

How to Unlock
There are three ways to unlock Luigi in Super Smash Bros. Brawl
 * 1) Play 22 VS matches
 * 2) Completing Classic Mode
 * 3) Getting Luigi to join you in The Subspace Emissary

In Super Smash Bros. 4
Luigi is a starter character in Super Smash Bros. for Nintendo 3DS / Wii U

Moveset

 * Neutral: Fireball
 * Side: Green Missile
 * Up: Super Jump Punch
 * Down: Luigi Cyclone
 * Final Smash: Poltergust 5000