Luigi does a straight kick. Pushes the enemy back.
Dash +
Luigi runs and punches like a maniac. It doesn't do much damage, and it isn't very useful.
+
Luigi makes a low kick.
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Luigi uppercuts the opponent. Hits primarily above him.
Smash Forward +
A karate-style punch. It's not very strong, but funny.
Smash +
Swings his legs forward and back. More range and faster than his forward smash.
Smash +
Swings his head forward, hitting enemies primarily above him. Low range, but powerful.
Luigi's is the only taunt in the game that can do damage. His taunt won't always hurt enemies, but the few times it does, it deals an incredible 1% of damage, with almost no knockback to speak of. Strangely, it is also a useful spike if your opponent is grabbing the edge. The easiest way to hit with this attack is to do it while running.
Aerial Attacks
Button(s)
Description/notes
Luigi sticks his leg out in front of him. Unlike most, it gets more powerful the longer it stays out, but not by much.
Forward +
Luigi makes a chop hit. Sends enemies forward; it's a good finishing move.
Backwards +
He swings his feet behind him. Somewhat fast, okay range, sends enemies sideways.
+
Luigi spins around. If the enemy is placed around Luigi's limbs, it can work as a Meteor Smash.
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Luigi does a backflip, swinging his leg primarily in front of and above him. Sends enemies up and forward some. Fast, low knockback.
Special Attacks
Button(s)
Attack
Description/notes
Fireball
Luigi throws a fireball out in front of him. The fireball only goes straight forward, unlike Mario's fireballs. It isn't very fast and doesn't do much damage.
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Super/Fire Jump Punch
Luigi uppercuts an enemy, and if an enemy is very close to Luigi, he'll do a fiery uppercut with 25% damage. If not, the enemy only gets 1%. Unlike Mario's/Doc's Up + B, this move only goes straight up.
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Luigi Cyclone
Luigi spins around rapidly, sending enemies every which way. This attack can be used for recovery if the player is tapping the B button very, very fast.
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Green Missile
Luigi flies forward, similar to Pikachu/Pichu's Skull Bash. This move can be charged to go farther and hit harder. There is a 12.5% (one in eight) chance of the Green Missile spontaneously misfiring. The misfire makes Luigi go even farther than usual, deal a lot more damage, and knock back a lot further. It's a much better recovery than his Super/Fire Jump Punch.
Throws
Button(s)
Description/notes
He throws the opponent on the ground, who then bounces up.
Forward
Luigi swings around once and throws the enemy forward.
Luigi simply throws the enemy up.
Back
Luigi swings around several times, throwing the enemy behind him. A respectable kill move.
Advanced Techniques
Luigi Ladder
This trick requires two Luigis standing within range of their up-B attacks, but so that their up-B does not connect with its fiery sweet-spot. At this point, both Luigis can alternate using their up-B attack, climbing higher and higher into the air; they will accumulate damage but never die. This tactic can be used as a stall in team tournaments and is usually banned.
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