Luigi is ranked 38th of D tier on the current tier list, placing him in the lower low tier. Luigi has amazing frame data, one of the strongest combo games in the current demo and strong priority. Luigi has a strong list of KO options in his arsenal, including forward smash, up smash, forward aerial, down aerial, back aerial, Green Missile, Luigi Cyclone when killing off the top and a sweet spottedSuper Jump Punch. Luigi also possesses one of the strongest aerial games in the current demo, with fast, strong aerials that have great priority in them.
However, Luigi has his weaknesses in that he doesn't have great approach options. Luigi has one of the worst overall mobility in the game, possessing the worst air speed while also having below average dashing speed. He also lacks range, which gives him trouble approaching characters with disjointed range (Marth, Ichigo, etc.). He doesn't have a reliable projectile in the fireball, which is slow and can be clanked with easily. Luigi also has the worst traction in the game, which makes him hard to control when dashing and makes a lot of unsafe moves safe on his shield due to him being pushed too far away. Luigi also has a predictable recovery, in that Green Missile has to be charged to cover a considerable distance if a misfire doesn't happen and can be easily intercepted. Super Jump Punch covers good vertical distance, but it has poor horizontal movement due to the move going straight up and having low drift after the rise. Luigi is also a below average faller, which allows him to be KO'ed vertically early.
Standard: Does various humorous poses very quickly in a set order: Faces the screen with one hand on his waist, makes the peace symbol, turns to the right slightly pointing his hands that direction. Then, he places his right hand just below his nose, after that, he turns away from the screen, crouching, as if he's sad, and finally, he faces the screen once more, with both hands on his face, giving a frightened look, similar to the box art of the game Luigi's Mansion. He also makes a sound during each pose: "Hoh! Hah! Hee! Hey! Hoo!"
Side: Stands straight up with hands on hips, falls forward stiff on the floor, then seems to balance himself back up again. He says something that resembles "Pow pow".
Interestingly enough, Luigi position as a starter character in SSF2 is similar to him becoming a starter in Smash 3DS and Wii U.
Luigi is one of (currently) five characters to have his availability status changed (he was an unlockable character in the original Super Smash Flash) the other four characters (so far) are Mr. Game & Watch, Lloyd, Naruto and Jigglypuff.
Luigi, along with Yoshi and Link, are the only characters so far to wear their default costumes in team battle when they are on the green team.
Luigi has a slight purple accent on his overalls. This is a reference to his design in Super Smash Bros..