Mega Mario is a form that Mario and some other characters can take by eating a Mega Mushroom in many games, first seen in Mario Party 3. This form allows players to grow into an enormous size, allowing them to destroy every enemy in their path and obliterate almost anything (including Pipes, Goal Poles, Empty Blocks, Boos, and Hard Blocks).
Mario Party series
Mario Party 3
In the minigame Toadstool Titan of Mario Party 3, characters could grow giant by obtaining the Mushroom hidden in one of the several Brick Blocks every round. Once the character had obtained the mushroom, they were capable of knocking out other characters in a short period of time. Mega characters cannot jump and control their moves, however, instead charging in whatever direction they are facing.
Mario Party 4
In Mario Party 4, the Mega Mushroom causes one to enlarge in size and hit two Dice Blocks. While Mega, the player can take 10 coins from any opponent the player squishes. The Super Mega Mushroom works the same way, but with three Dice Blocks.
Mario Party: Star Rush
Mario Party: The Top 100
The Mega form returns with Toadstool Titan (now renamed Mush Pit) in Mario Party: The Top 100. In this version of the minigame, the Mushroom is replaced by a Mega Mushroom.
Paper Mario series
Paper Mario: The Thousand-Year Door
In Paper Mario: The Thousand-Year Door, Mario or his partners can become huge by using a Power Punch. This increases their attack power briefly for a few turns. During a few Bowser intermissions, if he eats enough Meat, it has the same effect as a Mega Mushroom and makes him huge, invincible, and destructive for a brief time. Princess Peach can also swallow a potion that makes her momentarily giant, although no other effects are seen.
Super Paper Mario
In Super Paper Mario, when Mario, Luigi, Princess Peach, or Bowser grabs a Mega Star, they will turn into giant versions of their 8-bit sprites from Super Mario Bros. (Mario and Luigi use their Small form sprites). As Mega Mario, Mario will be able to break any Brick Blocks, Pipes, and enemies in his path, as in New Super Mario Bros.. Mega Mario and Luigi are shorter and faster, while Peach and Bowser are taller but slower. In Chapter 3-1, there is a specific Koopa Troopa that uses a Mega Star, causing it to become the Mega Koopa. According to The InterNed, the music plays while one of the characters is in Mega form (including the Mega Koopa) is titled "An Unrivaled Battle".
Additionally, by feeding Princess Peach a Red Apple while she is in her comatose state, she momentarily grows to a giant size.
Paper Mario: Color Splash
In Paper Mario: Color Splash, Mario can enlarge himself in battle by using the Magnifying Glass thing card, which lets him trample over enemies. He also does so as part of his performance at The Emerald Circus, after being tossed several Super Mario Bros.-styled Super Mushrooms.
Super Mario series
Super Mario 64 DS
In Super Mario 64 DS, the mushroom has the same effects as the Mega Mushroom and makes the player grow to a larger size. The character can then obliterate almost anything in his path, and if he breaks more than eight objects, he will get a 1-Up for every additional object he destroys. The mushrooms are always found in Bricks and stumps scattered throughout the level and are introduced in Bob-omb Battlefield. The character cannot do any special types of jumps, such as the Triple Jump. If Yoshi grabs a mushroom, he gains the ability to punch.
New Super Mario Bros. series
New Super Mario Bros.
The Mega Mario form returns in New Super Mario Bros., being obtained from the rare Mega Mushroom. The more objects Mega Mario breaks, the bar above his head will get filled in. If he crushes a certain amount of objects, Mega Mario can gain up to five 1-Up Mushrooms. Mega Mario also has the ability to squash any of the game's bosses in one hit, including Bowser in any of his forms. If Mega Mario falls into a pit, the purple toxic water or lava, or if time runs out, he is instantly defeated. If the Mega Mushroom is activated in tight spaces, Mario's transformation will be canceled and the Mega Mushroom will return to the touch screen; however, if Mega Mario is crushed in any way, he will revert to Super Mario and lose a life immediately after. Additionally, if Mega Mario completes the level, he destroys the flagpole, which will fill up one-fifth of the meter above him, ensuring at least an extra life is gained. After the Mega Mushroom wears off, Mario reverts to Super Mario, regardless of whatever form he was in before using the Mega Mushroom.
The Mega Mushroom's colors were originally going to be similar to those of a Super Mushroom, but was changed in the final version.
New Super Mario Bros. 2
Mega Mario would have returned in New Super Mario Bros. Wii, but it was removed from the final game. However, the form does return in New Super Mario Bros. 2, again being obtained from the Mega Mushroom, acting the same as in the previous game. Unlike in New Super Mario Bros., though, Mega Mario can only gain 1-Up Mushrooms (three of them) by destroying Goal Poles.
Super Mario 3D World
Mega Mario appears in Super Mario 3D World, making this game the form's second appearance in a 3D Mario platform game after Super Mario 64 DS. The form functions identically to the way it does in New Super Mario Bros. 2, allowing players to smash through objects and enemies. However, in Mega form, they can ground pound to create a shockwave that hits nearby blocks and enemies. The heroes have scowling expressions in their Mega forms. Like in New Super Mario Bros. and New Super Mario Bros. 2, players revert to their Super form regardless of what power-up they had before obtaining one.
Mario Super Sluggers
In Mario Super Sluggers, any character can become temporarily Mega by finding a Mushroom in the mini-game, Graffiti Runner. When players are giant, they can create small earthquakes that can paralyze all ground opponents for a brief period. However, they are still vulnerable to body checks, Chain Chomps, and characters that are invincible.
Mario Kart series
Mario Kart Wii
In Mario Kart Wii, Mega Mushrooms appear as items. When characters use the Mega Mushroom, they become temporarily giant, allowing them to squash opponents and get a speed boost, even on off-road terrain. However, they are not immune to Lightning, invincible racers or Bullet Bills; Mega players hit by Lightning revert to their original size. When a racer is giant, the original Mega Mushroom theme from New Super Mario Bros. can be heard from them.
Mario Kart Tour
Players can become giant again in Mario Kart Tour with the return of the Mega Mushroom item. However, instead of squashing other racers, drivers that are giant simply cause them to crash. They can also take out large obstacles such as Thwomps and metal balls and obtain points in the process. Giant drivers are considerably more vulnerable than in Mario Kart Wii and will shrink back to the original size if they are hit with Bananas or any offensive item, including shells. They also do not get a speed boost and do not have off-road advantages. The Mega Mushroom theme, in addition, does not play.
Mario & Luigi series
Mario & Luigi: Bowser's Inside Story / Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey
In Mario & Luigi: Bowser's Inside Story, one of Broque Monsieur's attacks during his battle with Bowser involves hitting a block and obtaining a Mega Mushroom. While mega, he attempts to ram Bowser, but this attack can be countered by punching him.
Mario & Luigi: Paper Jam
In Mario & Luigi: Paper Jam, Luigi uses a Mega Mushroom as the pivotal part of the Mega Thwonk Bros. Attack. He grows to his giant size from Mario & Luigi: Dream Team, and must charge at the enemy before smashing them away with his hammer.
Mario & Sonic at the Olympic Winter Games
The Mega Mushroom appears in the DS version of Mario & Sonic at the Olympic Winter Games, in the Dream Curling event. Some of the panels appearing on the ground are Mega Mushroom panels, which cause the stone to increase in size.
Mario Tennis: Ultra Smash
In Mario Tennis: Ultra Smash, any character can temporarily transform into Mega form by picking up a Mega Mushroom the sideline Toads randomly throw onto the court. While in this form, players can hit the ball more easily.
New Super Mario Bros. 2
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