Like Super Smash Bros. Brawl, the new game features a variety of Assist Trophies. These are characters who are brought out when the player picks up the trophy

Andross

Game Series: Starfox
Based upon: StarFox (1995)

Details
Andross makes a return and retains his classic 16-bit look from the original Starfox game in his Assist Trophy. Andross takes place behind the stage and breathes in. After a short time, he will start shooting out metal tiles forwards directly in front of him. These tiles will do decent damage to anybody they hit
Ashley

Game Series: WarioWare
Based upon: WarioWare Inc.: Touched! (2004)

Details
Ashley, the gothic regular of the WarioWare mini-game series, makes her first appearance as an Assist Trophy. When she is released, she will create a cartoon poison cloud that will gradually damage any character who hits it
Chain Chomp

Game Series: Super Mario Bros.
Based upon: Super Mario Bros. 3 (1989)

Details
The Chain Chomp is a classic Super Mario Bros. character and will sit around and cause damage to anything it hits. However, on occasion, it will stretch out towards an enemy.
Color TV Game 15

Game Series: Color TV Game.
Based upon: Color TV Game 15 (1978)

Details
The Color TV Game 15 assist is a simple assist. The assist sends a simple ball out between two paddles matching the game of Pong. If you hit these, you will be damaged.
Dark Samus

Game Series: Metroid
Based upon: Metroid Prime 2: Echoes (2004)

Details
Dark Samus was one of the antagonists of the Metroid Prime series. It is a Phazon that took Samus' appearance and moves. As an Assist Trophy, it'll move across the stage, shooting players, and occasionally bringing up some vines on the ground, damaging anyone around it
Devil

Game Series: Devil World
Based upon: Devil World (1984)

Details
From a game that wasnt released within the United States, the Devil from Devil's World appears. However, he is not a damaging Assist Trophy. Instead, what he does is point in a direction and the screen scrolls in that direction, thus making the visible stage disappear and thus it harder to stay alive for the time that Devil is in play
Dillon

Game Series: Dillon's Rolling Western
Based upon: Dillon's Rolling Western (2012)

Details
Dillon is the star of one of Nintendo's latest series, Dillon's Rolling Western, and makes his first home console appearance in Smash Bros as an Assist Trophy. What he does when summoned is not yet known, but it is implied that he will roll, much like his signature move in his series
Dr. Wright

Game Series: SimCity
Based upon: SimCity (1992)

Details
From what is originally not a Nintendo game, Dr. Wright is the advisor to the mayor of the Sim Cities. After that appearance, he has made appearances in a variety of games including Zelda. Like in Brawl, his Assist Trophy persona utilises the Sim City nature of his character. One summoned, he sends out a massive SkyScraper. This SkyScraper damages and pushes up anyone that it was under when it appeared
Elec Man

Game Series: Mega Man
Based upon: Mega Man (1987)

Details
Elec Man was a boss in the original Mega Man, used by Dr. Wily to help conquer the world. Like in that game, Elec Man will unleash various Electric attacks on other players on the field
Isabelle

Game Series: Animal Crossing
Based upon: Animal Crossing: New Leaf (2012)

Details
Isabelle is a character who was introduced in the most recent iteration of Animal Crossing. In that game, she was the aide to the player, who was mayor of the city. As such, her assist here is a similar helpful assist. She will pass you various fruits which will heal you while she is on the stage.
Knuckle Joe

Game Series: Kirby
Based upon: Kirby Super Star (1996)

Details
Knuckle Joe, when summoned, acts exactly the same way as in Super Smash Bros. Brawl. As he starts, he begins doing multiple jabs at the nearest opponent (called Vulcan Jabs). Afterwards, he follows where they go, jumping if necessary, and does one of two powerful finishers. One where he sends the opponent flying to the side with a powerful explosion (Smash Punch) and one electrically powered uppercut (Rising Break)
Lyn

Game Series: Fire Emblem
Based upon: Fire Emblem (2001)

Details
Lyn, like the other Fire Emblem characters, has a sword. This sword is a long and thin Ninja style sword and as such, Lyn's movements are ninja-like in nature. Once summoned, she charges some power and quickly vanishes. She then re-appears right by an opponent and connects with a powerful attack that does decent damage and considerable knockback
Midna

Game Series: The Legend of Zelda
Based upon: The Legend of Zelda: Twilight Princess (2006)

Details
Midna is a new assist, introduced from The Legend of Zelda: Twilight Princess. In that game, she was the princess of the Twilight Realm but had her appearance changed by Zant into an imp form. This assist has her in this form, using her ponytail as a hand to strike any nearby enemy.
Mother Brain

Game Series: Metroid
Based upon: Metroid (1987)

Details
Mother Brain is one of the main bosses of the Metroid series and is a cybernetic brain in a jar. Once sent out of the Assist Trophy, it stays still and fires a laser out of its eye which will damage any opponent that is within its sight.
Nintendog

Game Series: Nintendogs
Based upon: Nintendogs + Cats: French Bulldog & New Friends (2011)

Details
The Nintendog makes a return in this game. However, unlike in Super Smash Bros. Brawl when it was represented by a Labrador Retriever, it is now represented by a Bulldog. When it's released, it will come up to the camera and block the view of the battle.
Saki Amamiya

Game Series: Sin & Punishment
Based upon: Sin and Punishment: Successor of the Earth (2000)

Details
Saki is one of the characters from the originally Japan only Sin & Punishment series, has a variety of useful attacks that are used when summoned from an assist trophy. Saki's weapon, the Cannon Sword, is used in a variety of ways. Saki moves around the stage, jumping if necessary and slashes into opponents with the sword portion of his Cannon Sword. He then from a further distance is known to shoot with the laser gun part, causing decent damage
Samurai Goroh

Game Series: F-Zero
Based upon: F-Zero (1990)

Details
Samurai Goroh once again gets out of his F-Zero racer with his sword. Using this sword, he moves forwards with a constant slashing of the sword, this does decent damage and can cause multiple hits if the opponent is directly in front of him when he starts
Skullkid

Game Series: The Legend of Zelda
Based upon: The Legend of Zelda: Majora's Mask (2000)

Details
The Skullkid, with its appearance as seen in the Nintendo 64 classic The Legend of Zelda: Majora's Mask, makes its first appearance in Super Smash Bros. armed with the Majora's Mask. When summoned, he will invert the entire stage, having it run upside-down.
Stafy

Game Series: Stafy
Based upon: Densetsu no Stafy (2000)

Details
Stafy, from the Japanese Densetsu no Stafy (Legendary Stafy) series, makes its return in Super Smash Bros. It is not currently known what it does, but it is probable that it will do the same thing it did in Super Smash Bros. Brawl where it will spin around the stage, but is open for attacks itself.
Waluigi

Game Series: Super Mario Bros.
Based upon: Mario Tennis (2000)

Details
Wario's dastardly relation, Waluigi, makes a return as an Assist Trophy in the new games. Like before, he is armed with a tennis racket and will attack whoever he sees.
 
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