The Super Mushroom in the Mario series makes Mario grow to twice his height so he can break blocks. In Smash Bros. it makes your character bigger and stronger temporarily.
The Poison Mushroom first appeared in Super Mario Bros.: The Lost Levels, where is acted like an enemy, shrinking or defeating Mario. In Smash Bros. it acts like it does in Super Mario Kart, shrinking characters temporarily.
In Super Mario Bros., the Fire Flower gave Mario the ability to throw fireballs. In Smash Bros. the Fire Flower is held and used to shoot a stream of fire that weakens the more it is used.
The Starman grants Mario limited invincibility in the Mario series, allowing him to defeat enemies with a single touch. In Smash Bros. it prevents all attacks from causing damage for its duration. The invincibility music from Super Mario Bros. plays while this item is used.
In Super Mario Bros., kicking a Koopa Troopa shell would cause it to fire off and ricochet off obstacles, knocking out any enemies in its path. It has much the same effect in Smash Bros., damaging anyone it hits.
The Red Shell comes from the Red Koopa Troopa, known for walking back and forth on a single platform. The Red Shell in Smash Bros. also stays on one platform, but it also homes in on characters who stand on the same platform, an effect borrowed from the homing Red Shells in Super Mario Kart.
A creature made of ice that first appeared in Mario Bros. (Arcade), where it would slide along and turn platforms to ice. In Smash Bros. it can be picked up and thrown at players to encase them in a block of ice.
A small, clockwork bomb enemy that first appeared in Super Mario Bros. 2. In Smash Bros. it can be safely picked up and hurled at an opponent before its fuse is lit. Once it's walking, then anybody who touches it will be hurt by the explosion.
A green block from Super Mario 64 that contained the Metal Cap, transforming Mario into living metal. In Smash Bros., simply picking up the Metal Box will transform your character into metal, making them harder to push about, but also much heavier.
The Hammer from the original Donkey Kong (Arcade). Mario would use this hammer to break barrels and enemies, but it prevented him from jumping or climbing ladders. In Smash Bros. you use the Hammer to smash your enemies away, but you can only use one jump and none of your attacks for its duration. Sometimes the head will drop off, leaving you waving a useless handle. The original Donkey Kong Hammer theme plays while this item is in use.
In Donkey Kong Country, the Barrel Cannon was used to fire Donkey Kong and Diddy Kong through the air in the direction it pointed. In Smash Bros. you can throw the Barrel Cannon, trapping a player inside and forcing them to be fired out in unpredictable directions. This Barrel Cannon design first appeared in Donkey Kong Country 2.
In The Legend of Zelda, collecting a Heart Container would add a Heart to Link's health meter and also refill it. In Smash Bros., the Heart Container removes all damage points received.
The cute Bunny Hood was a popular trade item in Ocarina of Time, and in Majora's Mask it made Link move faster and jump a little higher. In Smash Bros. it acts more like the latter, making any character who wears it move much faster and jump higher.
The Screw Attack item gives Samus a devastating jump attack in the Smash Bros. series, destroying anything in its path. In Smash Bros., this item is carried, giving the holder the same damaging somersault. It can also be thrown at other players, forcing them to perform a Screw Attack.
Kirby's favourite food would restore all of his health in the Kirby series. In Smash Bros. the Maxim Tomato removes all damage received.
The Warp Star is Kirby's main form of transportation in the Kirby series, carrying him to new areas. In Smash Bros., the Warp Star flies your character off the top of the screen, then brings them crashing down in a devastating crash. You can steer its landing direction slightly after takeoff.
In Kirby's Adventure, the Star Rod was used against the final battle with Nightmare to throw stars to damage him. In Smash Bros. the Star Rod is a normal battering weapon. If it's swung with a Smash Attack, however, it will fire off damaging stars.
The Parasol first appeared carrying enemies in Kirby's Dream Land, but then Kirby could use it as an attack in Kirby's Adventure. In Smash Bros., the Parasol is used as a battering weapon, and lets players drift safely back to the ground.
In the Pokémon games, the Poké Ball is used to capture wild Pokémon. Before each battle, you throw out your Poké Ball to summon your Pokémon to fight. In Smash Bros., throwing a Poké Ball will cause a random Pokémon from a choice of 29 to appear and unleash an attack.
The friendly Mr. Saturn characters in EarthBound spoke in a strange dialect and proved very popular with fans of the game. In Smash Bros., they simply appear and walk around. They can be picked up and thrown, and while they don't cause a lot of damage, they are good at breaking shields.
The stick carried by Lip in Panel Pop. In that game it had no use other than decoration, but in Smash Bros. it causes a flower to sprout on the heads of any characters hit with it, draining health. Hit them repeatedly with Lip's Stick to make the flower bigger.
In Balloon Fight, the Flipper appeared as a stage hazard, spinning wildly if hit, and causing players to bounce off all over the place. In Smash Bros. it has the same effect, but it can be thrown anywhere on the stage.
Throw this item and it will adhere to any surface. When another player approaches, it will explode. The original is designed after the Proximity Mines from Perfect Dark, while the U.S. uses the Motion-Sensor Bomb from GoldenEye 007. The European version confusingly uses the GoldenEye design, but the Perfect Dark name.
The Cloaking Device in Perfect Dark was developed by DataDyne Corp. to make its soldiers invisible, appearing as only a shimmer. In Smash Bros., grab this item to become temporarily invisible, only showing up as a shimmer. You don't take damage while cloaked, but you can still be thrown about.
The Super Scope light gun peripheral for the SNES was used to play games such as Yoshi's Safari and BattleClash. In Smash Bros., it can fire a stream of smaller shots or charged up to fire big shots.