Avatar: The Last Airbender
- In Avatar: the Last Airbender Revisited, the interpretation of the Avatar is a bit different. The Avatar Spirit is, er, was a resident of the Spirit World that aspired to create a physical world that would teem with life. Once it had crafted the earth and humanity, it blessed humanity with a genetic trait that would allow a being to manipulate the molecules of elements, otherwise known as bending. The gift of bending divided humanity into four peoples that were isolated from each other, the Air, Water, Earth and Fire civilizations. It selected one airbender to be its host, so that it could teach the Air people the principles that it believed humanity needed to be taught. Once its host had died, it began a cycle that continued for generations by choosing to inhabit one of the Water people next, then one of the Earth people, and lastly one of the Fire people. Once this cycle had finished, it repeated itself. After each cycle completion, the role of the Spirit is taken over by the soul of one of the last generation's hosts, i.e. after the first cycle, the spirit of the first air host became the new Avatar, then after the second cycle, the spirit of the second water host became the Avatar, etc. Although the Spirit is a full-on Reality Warper, the hosts are not. The hosts can only have limited access to the Spirit's massive power reservoir by going into the Avatar State, which can only be achieved by severing all of one's earthly ties, also known as the Transcendence ritual. Beings that take the role of the Spirit and have undergone Transcendence have difficulty relating to entities of the physical realm, which can eventually go from bad to worse as (Foreshadowing) the Spirit loses all empathy for humans and embodies A God Am I. Problem is that theory is jossed by canon.
- Although he doesn't actually gain any godly powers, Calvin seems to believe this in one long insane spurt in Calvin and Hobbes: The Series:
- Binky Pie: Pinkie Pie ends up inspiring a "Church of the Pink Pony of Death" on the Discworld while working as Death's new steed/assistant. Since Gods Need Prayer Badly is in full effect on the Discworld, Pinkie Pie eventually ends up ascending to godhood. Complicating matters is the fact that she had previously been standing in for Death after he got trapped in Equestria due to a magical mix-up...
- The Bridge:
- Grand King Ghidorah declares that with his great power, he is a god and can do whatever he wants and kill whenever he wants.
- Bagan calls himself a god, and even dismisses Grand King Ghidorah and Legion, saying they are just kings and queens which are lower than a deity like himself. Unlike most claiments, He has a point.
- The evil Ultraman Belial says the Ultra race should have ruled over all other races as gods instead of being mere protectors. Since they refuse to be gods, he will take over and be the only God.
- Child of the Storm has Arnim Zola, by now a computer consciousness, who states this trope to Tony Stark in chapter 74 when he possesses Avengers Tower and all the machinery in it, which he says, "[This] makes me nothing less than your god." Tony has a salvo of snark ready, of course.
- Death Note Equestria: Initially averted, as Twilight views herself as a Necessarily Evil murderer, but doesn't view herself as a god. However, after L's death at the end of the second season, she dives right into this — she decides to set up Kira as a mythological figure of evil in order to scare anyone out of performing evil ever again, while also leading the "resistance" against Kira. She figures that such a position on both sides would make her a goddess.
- Children of an Elder God: After the main characters fought the MP-Evangelions, Yui seized the power of the Outer Gods to ascend to godhood and recreate reality according her will.
- Disney's War — A Crossover Story has the Horned King, from The Black Cauldron, who already had a bad case of that in his debut but didn't get better here. In the end, he does briefly becomes the "Horned God" when he merges with Chernabog.
- In Divine Blood, this is averted as Tessa Testarossa became the first Ainur to ensure the psychological and spiritual survival of her people against things like this fic's version of Kodachi Kuno and to serve as a message to the Gods and Demons that humanity can't be pushed around anymore. She still insists on being kept in the normal chain of command and suggested that having a full Ainur division would be a mistake and point of vulnerability.
- Dungeon Keeper Ami: Zarekos was in the process of ascending to godhood when Mercury encounters him. This grants him, an already quite powerful vampire, additional powers such as the ability to revive once when killed in battle. However, the trope is defied:
"He thought he was a god?" Ami asked... his actions had given her no reason to doubt his sanity."No, Keeper, he was not that delusional. Planning to become one, perhaps, but well aware of his own limitations."
- I Against I, Me Against You: Played for Laughs when Church uses his newly discovered abilities as the Alpha A.I. to take control of an Insurrection base, briefly letting the power go to his head.
- Justice League of Equestria: In Mare of Steel, General Zod feels that Kryptonians are gods compared to normal ponies and doesn't understand why Rainbow Dash/Supermare (violently) disagrees with him.
- Harry Potter and the Methods of Rationality: Harry's ultimate goal is essentially to become a god. Or, as he words it:
To understand everything important there is to know about the universe, apply that knowledge to become omnipotent, and use that power to rewrite reality because I have some objections to the way it works now.
- Bound Destinies Trilogy: While she doesn't outright call herself a god, Veran, the Big Bad of Wisdom and Courage, does genuinely believe herself superior to Din, Nayru, and Farore themselves, and part of her plan after she's finished with Hyrule is to invade the Sacred Realm and subjugate the trio under her rule using the Triforce. She doesn't live long enough to try it, and in chapter 37, Din wastes no time in openly mocking her for being so arrogant.
- You Got HaruhiRolled!: Being this a Crack Fic, it is only natural that Haruhi and Sasaki both declare godly ambitions. Furthermore, during the one-year anniversary chapter, the author superstarultra himself appears in the fic, and plays this trope straight as a furrow, even going so far as to say that humans on our side of the fourth wall are Cthulhu.
- Origami seems to have a god complex stemming from his Paper Master powers, as when he's re-imprisoned after being depowered, he's insulted at being stuck in a cell designed for "mere mortals".
- Simon Leston, the new Squid Khan General gets into this during his Motive Rant, stating that his new power makes him God.
- The Lion King Adventures: Hago. He believes himself to be an ultimate life form, with the powers of a god.
- In No Gods, Only Guns, Niftu Cal, much like in canon, declares his godhood. Unlike in canon, he isn't delusional.
"Pathetic, mortal worms. You ignorant fools know not what you face. For I... I am NIFTU CAL! I am a BIOTIC GOD! and you will SMELL MY GREATNESS!"''
- Mega Man: Defender of the Human Race: At the end of his ultimatum to Earth, Terra claims the Stardroids are gods.
- Diaries of a Madman: Discord declares himself as one several times, and gets extremely irritated whenever anyone else refers to Celestia and Luna as gods, viewing them as pretenders.
- The Immortal Game: Ignoring the fact that most of the main villains and one of the protagonists are actual gods, the story ultimately has a subversion of this trope in the case of Twilight Sparkle. After tapping into the full power of the Elements of Harmony, she becomes a Physical God so powerful that only Titan himself is able to knock her down — and she is horrified by it, deciding that nopony should have that much power.
- And then a double subversion when she absorbs the full powers of the goddess Harmony herself during the Final Battle. She admits that by all definitions of the word, she is a god now.
- The Life And Times Of A Winning Pony: In The Lunar Rebellion, this (or technically “A God’s Avatar Am I”) sums up the Avatar of Nightmare Moon’s (formerly ephor Bright Charger of Pegasopolis) worldview in a nutshell.
“I am an alicorn, a higher state of being. I am faster, stronger, smarter, and simply better in every conceivable way. I am Luna reborn, her will made flesh and Equestria’s liberation.”
- The Non-Bronyverse: Discord proclaims himself one in the AU story The Breaking of a Non-Brony. TD also uses this in the AU story TD the Alicorn Princess, but only to threaten Blueblood with it.
- In the Oversaturated World, Indigo Zap reacts to her newfound powers of flight by deciding she has become a deity. This example is particularly insane, because (a) roughly a fifth of the entire human population has gained the exact same power set and (b) Sunset Shimmer, who is literally keeping the universe from falling apart, has taken up more of A God I Am Not role despite being far, far more powerful.
- Pages Of Harmony: Twilight Sparkle.
- After extracting the essence of the Elements of Harmony from her friends and analyzing their signatures, she intends to use her research and magic to eradicate all beings in the universe — and multiverse, if it exists — that don't have the genetic capacity for harmony, letting only the ones she judges as worthy being allowed to live, intending to train the survivors. And if that weren't enough, she intends to make herself immortal to keep her "perfect reality" stable and orderly according to her wishes for as long as she can — which, in her mind, is eternity.
- As if that's not enough, in Chapter 12, the last chapter before the epilogue, she absorbs the essence of all the Elements of Harmony and becomes an ethereal alicorn-like creature, declares herself to be "Harmony Incarnate", and performs a memory-alternation on Ponyville's population so they believe she's their Empress.
- Pony POV Series:
- The Valeyard (the Dark World version of the Doctor) has a serious case of this. He views himself as the ultimate being, above even the Elders Themselves. His ultimate plan is even to eventually steal Discord's power and use it to cast down the other gods so that he can rule the universe.
- Luna used to think like this (though to be fair, she is a god in this setting), to the point that she was offended that Her Father actually cared about the lives of mortals. Fortunately, He then put her through Break the Haughty, followed by her later actually spending time as a mortal, which changed her views.
- Makarov boasts that he is a god because of his ability to alter reality.
- At the end of the Wedding Arc, it turns out the Chrysalis' Evil Plan all along was to become an alicorn, which occurs when the Elements of Harmony are used on her. Fortunately, she learns there's more to being a god than power, as the Elements force her to grow a conscience, which triggers her final Villainous Breakdown.
- A Crown of Stars: Long before the beginning of the story Daniel was an human that sought to ascend to godhood to have power enough to make a positive change on his world. He succeeded.
- HERZ: During the battle of 2015 Rei merged with Lilith and absorbed Adam, gaining the power of two Eldritch Abominations.
- In Neon Genesis Evangelion: Genocide, the Emerald Tablet, a mad A.I., comes to regards itself as a god.
Rei: I failed... to understand you.
The Emerald Tablet: You can no more understand me than a maggot can understand God.
- Scar Tissue: Deconstructed. The conscience inside Unit 02 ate nine MP-Evas as well as the Lilith/Adam fusion to increase her power and tried to talk Asuka into merging with her and becoming a god and never again feeling pain. Then Shinji showed her his memories during Third Impact and Instrumentality, when he had been given godly power and she felt a pain excruciating. After realizing what being a god was like, she stopped to wish for it.
- Thousand Shinji: The story ends with Shinji, Asuka, Rei and Misato ascending to becoming the new Chaos gods.
- In The Shape of the Nightmare to Come, Cato Sicarius becomes this after becoming the ruler of Grand Sicarium, previously known as Ultramar.
- In Fallen King, Maximillion Pegasus thinks of himself as a god after defeating Yugi, with plans to rewrite reality in his image.
- In Ultraman Moedari, Mater Mundaram pretty much forces this on one of the protagonists.
- Until the End of Time: Super Saiyan Hitler. Complete with a Shout-Out to the Street Fighter movie.