NatBat

"'But that's just a theory!'"

NatBat is a former user and a clone of MatPat, and also the owner of the "Arena Theory" YouTube channel. He was insane and hated by pretty much everyone in the Arena, and also some others. However, he also has tons of fans that defend him all the time, most of them being from Battle Town, the town next to the Arena. He was one of Season 4's antagonists.

History
Not much is known about his backstory. All we know is that he was a clone created by MatPat a while ago, who moved into the town near the Arena and began making theories about it and it's users. Some time before this, he also built his custom replica, Withered Goldem Freedy, a bootleg Withered Golden Freddy.

After arriving at the Arena, he spent months there, writing several theories about everyone single person in it, angering other people, and constantly getting into arguments. After a few months, he was forced to get a new replica after custom ones stopped being allowed. His new replicas were the Mad Theorists from FiS2. However, Freedy stayed in the Arena and continued helping the theorist with most of the stuff he did.

Some users also fought him a few times, but in most of those fights, he managed to get away. One of the first ones ended with im rewinding time to flee from the fight and hiding in his room, soon giving his slot to the Mad Theorists for unknown reasons. Following fights had slightly similar results, until one that started while he was trying to prove a theory about a soul being trapped inside a doll known as Quartz. He was unable to escape, which lead to the Battle Town police arresting him. He spent some time in prison, until one day, a mysterious figure broke into the police station, distracting all other people in it with a strange monster that they somehow created. Using a strange ability, they freed NatBat from his cell and allowed him to escape.

After that happened, he stayed in the Theorist Lab, a laboratory that belonged to him and MatPat, for some time, but after not too much time, he went back to his usual theorizing. Still not letting go of the "Trapped Soul" theory, he and Freedy broke into the Battle Town bank, with the theorist claiming there was an artifact capable of manipulating souls in it. Several users and police officers arrived to stop him, causing another fight to start. However, this one ended up with Goldem Freedy being destroyed, and NatBat being defeated and banished to another dimension.

That seemed like the end of his story, but however, one day, Xeta confronted one of the Mad Theorists, specifically Mad MatPat, about his strange behavior. This eventually lead to him revealing that he was, in reality, NatBat in Mad MatPat's body. Just about a second before being destroyed, Goldem Freedy had managed to use his "Editing" powers to swap the two theorists' souls, allowing NatBat to stay undefeated for some more time. In one final battle against him, in which he used a stolen Upgrade Engine to upgrade himself into Mad Lab MatPat, he used what was meant to be a Hypercharge (The strongest known type of Overcharge), but due to him already being somewhat weakened due to the fight, and Mad Steph not being there with him, not enough energy was used and an unstable version of the Hypercharge was used instead. This lead to reality itself being corrupted, along with space and time.

In this version of reality NatBat had created, almost nobody could move, and some could, but not enough to keep fighting. However, Xeta was able to break out of this effect by going into his Unleashed Power form, being able to defeat the theorist and revert the effects of the failed Hypercharge. Now actually defeated, his (or, technically, Mad MatPat's) body was completely destroyed, killing him.

After his death, his fans claimed that NatBat had been murdered by the users who had participated in this fight, but they didn't really do much else.

Abilities
NatBat had various abilities, most of them coming from Withered Goldem Freedy's Overcharge, which allowed him to turn reality into some sort of video to mess with it.


 * Pause - NatBat pauses the "video", stopping time for a few seconds, only allowing himself and Freedy to move. However, some characters were unaffected by this.
 * Rewind - NatBat rewinds time. However, the only time he used this ability, everyone seemed to keep their memories of what happened before the rewind.
 * Edit - NatBat becomes able to modify anything about his target. The changes are capable of being temporary or permanent. Freedy used this ability to swap NatBat and Mad MatPat's souls.
 * Circles and Arrows - The theorist was able to summon green circles and arrows, with the latter being used more as weapons than the former, due to their sharpness.
 * Pyrokinesis - A skill that was taught to him by the Mad Theorist. At first, it simply allowed him to use a weaker version of their Infernal Dash ability, which let them turn into green fireballs for some time, but when he was in Mad MatPat's body, it became stronger, and he got access to other types of fire-related abilities.

Trivia

 * Before his death, he managed to make over 1000 theories about the Arena.
 * He never paid attention to any criticism he received, always ignoring it. He also always claimed that everyone either treated him unfairly or just didn't actually listen to him.
 * While Zest absolutely hated him, he was pretty good friends with GLaDOS.
 * As seen the first time he came to the Arena, his theory papers were immune to things like fire.
 * He was originally created as just a UB version of MatPat, and was basically a joke character, but he was eventually introduced as an actual one and got a lot of story relevance in the RP.
 * One of his most famous (and also infamous) theories was WhiteBot, a theory about, like its name implies, White being a robot.
 * His full name is Natthew Batrick.