Big Boo (Paper Mario series)
Atomic Boos are enemies that resemble Big Boo and has appeared in the Paper Mario series beginning in Paper Mario: The Thousand-Year Door.
History
Paper Mario: The Thousand-Year Door
Template:Pmenemybox Atomic Boo makes its debut in Paper Mario: The Thousand-Year Door. The Atomic Boo is an optional mini-boss composed of approximately two hundred different Boos. To fight this boss, Mario must go to the Creepy Steeple after freeing the 200 Boos in Chapter 4 (if he guesses the number right, a Boo will give him an Ultra Shroom). Even though Mario agreed to be nice to the Boos, they swarm him as soon as they are free. If Mario knocks the Boos away twice with the Super Hammer by using the Spin Attack, the Boos will combine together to make the Atomic Boo.
Atomic Boo attacks by flinging Boos at Mario, charging up a powerful glare attack, hiding his face and becoming invisible like regular Boos, floating over and falling onto both Mario and his partner, and inflicting Mario with status ailments such as confusion and paralysis. Once Atomic Boo is defeated, he will relinquish his Lucky Start badge to Mario and the Boos will stop their swarming and appear as normal enemies.
A purple variant of Atomic Boo, called Dark Atomic Boo, was found in the coding of Paper Mario: The Thousand-Year Door, but cannot be encountered. It would have been fought on the 50th floor of the Pit of 100 Trials. It is reasonable to assume that Dark Atomic Boo would have been a more powerful version of Atomic Boo.
Super Paper Mario
Template:Spmenemybox Atomic Boos are rare enemies in Super Paper Mario. In fact, only one appears in Merlee's Mansion, where it is considerably weaker. This Atomic Boo will attempt to attack the player by charging at them while they are facing the direction opposite of them and will turn intangible and shy away if the player faces it. Also in Super Paper Mario, Atomic Boos will occasionally appear in the minigame Mansion Patrol; though slower than regular Boos, Atomic Boos take several hits to defeat instead a single one.
Paper Mario: Sticker Star
In Paper Mario Sticker Star the Atomic Boo is known as Big Boo. In this game, the Big Boo looks like a large, crumpled paper ball with a Boo face. The Big Boo only appears once in the entire game and is a mini-boss found in World 4. It is created when Kamek combines the Boos found in The Enigmansion.
In battle, the Big Boo's only attack is eating Mario and then spitting him out. However, once the Big Boo uses its turn, the candles will come on and the Big Boo will turn invisible. During this time, Mario is unable to attack the Big Boo, but the Big Boo is still able to hurt Mario. In order to make the mini-boss visible again, a Thing sticker with wind or water properties needs to be used in order to extinguish the candles. However, using a Thing sticker with fire properties such as Matches and Lighter while the candle has been put out will light up the candle once more. Note that although the Big Boo is invisible while the candle is lit, it can still take damage from Spike Helmet or Poison Mushroom.
Once the Big Boo has been defeated, the Book of Sealing will stay on its pedestal and the mansion will be free of ghosts.
