Events in Fan Fic that are not possible. only list examples that fit the description
Hyper Tengen Toppa Gurren Lagann from Super Milestone Wars, it's the size of an entire universe.
Shinji And Warhammer40k: In Neon Genesis Evangelion canon, AT-Fields are only a defensive shield. Repeatedly this is stated to be what they are and what they do. This fic uses them to do things that are literally impossible.
Brave New World: Leo himself said making a "Enhance Button" is impossible but "I figured out how to make one of my own in spite of that because I'm awesome." This disregard for physical laws makes Pikachu's eye twitch.
Nobody Dies:Jet Alone Prime generates an AT-field despite not being an Evangelion and Mana uses it to collapse an Angel's AT-field.
RE-TAKE: Shinji swats Arael out of the sky with his AT Field. Yes, a purely defensive ability somehow turned into a weapon
My Little Denarians: In The Dresden Files canon it is thought impossible to destroy a Denarian's coin. The most you can normally do is kill the host and seal away the coin. Harry is understandably shocked when Lash's defeat of Lasciel results in the coin being destroyed.
Super Robot Wars Unlimited Generation provides this: Shiniji Ikari broke Eva's laws of physics to save Rei from death. All because he simply cared about her so much that he didn't give a damn what limits were in his way, including fate itself.