The Poison Mushroom (毒キノコ, Poison Mushroom) is an object from the Mario series, debuting as an item in Super Smash Bros. Melee. It looks similar to a Super Mushroom, differentiated only by a duller color scheme and angry-looking eyes.
The Poison Mushroom's behavior is similar to that of the Super Mushroom, but its effects opposite. At first, it looks like a Super Mushroom; but instead of growing, a character touching it will shrink.
A character touching it will shrink with the following effects:
The transformation lasts about ten seconds. Touching a Poison Mushroom while under the effect of a Super Mushroom and vice versa will restore a character to their normal size.
Poison Mushrooms made their debut in Super Mario All-Stars, where they'd cost characters a life if picked up. These nasty fungi are dark and foul-tasting, and in Super Smash Bros. Melee, they make you shrink on contact. With your diminished stature comes a loss of power and mass, making you a prime target to get smashed offscreen with even a light attack.
In Super Smash Bros. Brawl, characters strike a pose while growing/shrinking, briefly lamenting their reduced size and relishing their return to normal. Most of the items held by the player, as well as their own projectiles, will be proportionate to their lower size. Certain attacks or charge ups can be interrupted if a Poison Mushroom touches the player in the course of doing an action.
Tiny battles also return as a Special Brawl feature.
A penalty item that shrinks whoever grabs it. It's hard to distinguish from a Super Mushroom, so you may find yourself getting small when you wanted to get big. When you're in miniature form, your attack power drops, and even the lightest attack can send you off the stage. That being said, a small target's hard to hit. Your best plan when you're tiny may be to run.
The Poison Mushroom returns in Super Smash Bros. 4, keeping its prior behavior. Mini battles are once again available as a Special Smash option.
In Smash Tour
The Poison Mushroom is a red trophy item: when selected, it makes a chosen opponent start a battle under the effect of a Poison Mushroom. Using this trophy cancels the effect of a Super Mushroom trophy used by the target.
The Poison Mushroom is one of the items that can appear during a Transformation Smash.
Becoming giant and looming over your foes is pretty great, yeah? Well, that won't happen if you get this mushroom. It looks a lot like the Super Mushroom, but it's a slightly different color and its face is... unhappy. If you use this mushroom, you'll shrink down and be easy to send flying.
So, you thought you'd nabbed a Super Mushroom, eh? Nope! Now you're tiny! If you'd looked more closely, you'd have seen it was a slightly different colour - it was a Poison Mushroom. Now you're mini, weak and very launchable. At least dodging's not hard when you're this size!
Poison Mushrooms made their first appearance in Super Mario Bros.: The Lost Levels, first released in Japan only with the title Super Mario Bros. 2. It is found in some ? Blocks and looks deceptively similar to a Super Mushroom, but touching it is equivalent to touching an enemy: Super Mario/Luigi is reverted to his smaller size, and small Mario/Luigi loses a life.
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