From the Super Mario Wiki
1-Up Mushrooms are green mushrooms that give the player an extra life. They are usually the rarest mushrooms, but can still be found in almost every game a Super Mushroom has appeared in, and even some it has not. 1-Up Mushrooms are usually found in hidden blocks or in risky places for the player. They always grant the player a positive effect when acquired.
Super Mario series
Super Mario Bros.
The 1-Up Mushrooms first appear in Super Mario Bros.. In this game, they have green spots on a yellowish-orange mushroom cap. They are usually found in hidden blocks or in areas where Mario must risk his life to acquire one. They are rather uncommon in this game; most of them can only be earned by grabbing all the coins of the previous world's third course. In World 1, however, there are two hidden 1-Up Mushrooms, more than Mario can find than any other world in the game.
Super Mario Bros.: The Lost Levels
The 1-Up Mushroom, along with the Super Mushroom, reappears in Super Mario Bros.: The Lost Levels. Due to this game being a direct sequel with very few graphic changes, nothing changed over the behavior of the 1-Up Mushroom, though like the Super Mushroom and the newly introduced Poison Mushroom, these mushrooms now have eyes, which continue to be present in almost every installment afterwards.
Super Mario Bros. 2
While 1-Up Mushrooms are present in Super Mario Bros. 2, the Subcon versions look very different from the usual green-capped mushrooms. Found by pulling up a plant containing one or throwing three items at a bubble containing a 1-UP (in Super Mario Advance only), they have a solid red cap with "1 UP" written on their side. As usual, they grant an extra life.
Super Mario Bros. 3
1-Up Mushrooms reappear once again as rare mushrooms that can be found in hidden blocks or in risky places in Super Mario Bros. 3. Their behavior has not changed much, but they now have green or light-blue spots on a white cap, and extra lives are also regularly obtained via the card system. In World 6-3, a pure white 1-Up Mushroom can be found.
Super Mario World
In Super Mario World, 1-Up Mushrooms behave as they do in Super Mario Bros. 3, but can be found in a more varied range of places. Fishin' Lakitus carry them as bait for Mario, and when Mario acquires it, the Lakitu will chase after Mario, throwing Spinies after him. 1-Up Mushrooms also appear out of eggs when Mario is already riding a Yoshi and hits a ? Block containing an egg.
There is another item in Super Mario World that can grant Mario lives — the 3-Up Moon, which gives Mario three extra lives instead of one, but is even rarer than the 1-Up Mushroom and is only found in hidden areas, such as behind the Giant Gate in some levels.
A flying winged golden 1-Up Mushroom exists unused in this game.
Super Mario 64/Super Mario 64 DS
Appearing differently from its previous design, 1-Up Mushrooms in this game are green with yellow spots. They are also the only mushrooms that can be obtained in Super Mario 64. They can be found in a number of places, such as after going through or collecting a ring of coins. 1-Up Mushrooms are also found in hidden areas or on top of poles. Most will seemingly slide away from Mario, while others follow Mario until he collects it. Others are static, and Mario can simply run up to the mushroom and collect it. A 1-Up Mushroom can also be found in the room with the Jolly Roger Bay painting. Also, three 1-Up Mushrooms can be found at the top of Peach's Castle if the player uses the cannon to reach there. In some stages, some 1-Up Mushrooms may appear in a small field of flowers. Touching or punching certain butterflies may also spawn 1-Up Mushrooms, though others spawn homing bombs instead. Others appear in some ! Blocks in some missions.
In Super Mario 64 DS, they are the most common mushroom, as Super Mushrooms were added in this version, and they share their design from Super Mario Sunshine and Mario Kart: Double Dash!!. They share the same role in this game and appear in the same places. Like the original game, some will try to run away from the player, others follow the player until he gets a life, and others are also static in one area. Unlike the original game, the word "1-Up" will appear after collecting the mushroom.
Super Mario Sunshine
1-Up Mushrooms reappear in Super Mario Sunshine. They look like 1-Up Mushrooms from Super Mario 64. They are the only type of Mushroom that can be acquired in this game. Aside from gaining an extra life, Mario's health meter and F.L.U.D.D.'s water tank will also be completely refilled upon collection. Some 1-Up Mushrooms try to escape from Mario after they're found.
New Super Mario Bros.
Little has changed in the behavior of these mushrooms in New Super Mario Bros. when compared to Super Mario Bros.. However, they can be obtained by collecting a Mega Mushroom and destroying a certain number of objects in the player's path. When this action is completed, a number of 1-Up Mushrooms will fall from the sky, determined by the amount in the meter at the top of the screen.
Toad Houses are also scattered around the landscape. Some of these are 1-Up Toad Houses. Here, Mario or Luigi must hit blocks with cards in them, randomized. There are the followng cards:
Super Mario Galaxy
1-Up Mushrooms act very similar in Super Mario Galaxy and Super Mario Galaxy 2 when compared to the games in the past. However, they are found in other places such as the bottom of planets or next to Black Holes. When the player also touches all Rainbow Notes activated by a ? Coin, a 1-Up Mushroom will often appear. The player can also get a 1-Up mushroom from Lumalee for 30 star bits on certain galaxies, particularly before some boss fights. Five 1-Up Mushrooms can be found on the Comet Observatory. When Mario receives a letter from Princess Peach via the Mail Toad, five 1-Up Mushrooms will be included with the letter. When playing as Luigi, 20 1-Ups will be included instead of five.
New Super Mario Bros. Wii
1-Up Mushrooms act in a very similar manner in New Super Mario Bros. Wii when compared to New Super Mario Bros.. 1-Up Mushrooms are pretty rare in the levels and they are usually hidden well. They can also be obtained by getting all the Red Coins from Red Rings. The 1-Up Toad Houses each have a minigame, 1-Up Blast, in which the player must hop into cannons and shoot the cannon at balloons with numbers ranging from one to four. If the player pops these balloons, the number of lives shown on them will be received.
Super Mario Galaxy 2
1-Up Mushrooms also appear in Super Mario Galaxy's sequel, Super Mario Galaxy 2. They have the same benefit like in the predecessor — each mushroom gives Mario an extra life. The Rainbow Notes that Mario collect often make 1-Up Mushrooms appear, usually three. Mario can also obtain 1-Up Mushrooms from Lumalee, on Starship Mario, or from Chance Cubes, with some Chance Cubes having the chance of rewarding up to five 1-Up Mushrooms.
Super Mario 3D Land
1-Up Mushrooms return in Super Mario 3D Land and function the same as they do in any other Mario game.
New Super Mario Bros. 2
New Super Mario Bros. U
1-Up Mushrooms also reappear in New Super Mario Bros. U. Once again, it gives the player an extra life.
Super Mario 3D World
In Super Mario 3D World, 1-Up Mushrooms appear once again and retain their effects from previous games.
Captain Toad: Treasure Tracker
1-Up Mushrooms also reappear in Captain Toad: Treasure Tracker.
Mario & Luigi series
In Mario & Luigi series, the 1-Up Mushroom revives Mario and Luigi with half of their HP if either Mario or Luigi lose all of their HP in battle.
There is also a stronger variant called a 1-Up Super that appear in Mario & Luigi: Superstar Saga and Mario & Luigi: Partners in Time. They are very expensive and are named after the 1-Up Mushroom and the Super Mushroom. When used, it restores all HP (and BP in Mario & Luigi: Superstar Saga) to a fainted Mario brother, whereas the normal 1-Up Mushroom only revives them with half of their maximum HP. It is known as the 1-Up Deluxe in Mario & Luigi: Bowser's Inside Story and Mario & Luigi: Dream Team. Unlike the first game's 1-Up Supers, Mario & Luigi: Bowser's Inside Story's 1-Up Deluxes do not restore SP, the equivalent of BP in the first and fourth game of the series.
1-Up Mushrooms reappear in Mario & Luigi: Paper Jam and they function the same as they do in the previous games. 1-Up Deluxes return, their name shortened to 1-Up DX, and a new type of mushroom, the Double 1-Up Mushroom, makes its debut. The Double 1-Up does exactly what it suggests: it revives two fallen party members, but with less HP than a regular 1-Up mushroom.
Mario Kart series
In Mario Kart Double Dash!!, a 1-Up Mushroom appears as an emblem in the front of Toadette's Kart. This kart is supposed to be a recolor of the Toad Kart, which is blue and sports a regular Mushroom as an emblem. The 1-Up Mushroom does not appear as Toadette's emblem in later games, however. A 1-Up Mushroom represents the Mushroom Bridge track logo as well.
Mario Baseball series
The 1-Up Mushroom only appears in Mario Superstar Baseball as an item that can be obtained through a slot in Toy Field. When the player acquires a 1-Up Mushroom, they can bat again, regardless if the fielders caught it or not.
Mario Tennis Open
Paper Mario series
Paper Mario: Sticker Star
Paper Mario: Color Splash
1-Up Mushrooms proper also appear in their sprite forms in the Super Mario Bros. 3-styled level in the Green Energy Plant. They are found in ? Blocks, although they only restore a portion of Mario's paint.
Puzzle & Dragons: Super Mario Bros. Edition
In Puzzle & Dragons: Super Mario Bros. Edition, the player will lose a life in a course when their team's total HP goes to zero. The player is then given an option to continue through the course or go back to the world map. Continuing through a course uses 1-Up Mushrooms, costing one per continue. When players lose all their lives, they go back to the world map and are automatically given four 1-Up Mushrooms. The player's maximum amount of 1-Up Mushrooms is 10.
1-Up Mushrooms can be found by opening ? Blocks in certain courses and can be won in the Lucky ? Blocks game at Toad Houses. The player may also earn them in a course by getting 12 combos.
Super Smash Bros. for Nintendo 3DS / Wii U Trophy information
Blue indicates exclusive to the Wii U version.
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