A really interesting plot twist could be that the Gamer's power isn't just a quirk, but a key to unlocking a whole new dimension in the My Hero Academia world. And this new dimension has different rules and powers. It could completely change the power dynamics in the story and force the characters to adapt in new and exciting ways.
In some fanfictions, a plot twist might involve the Gamer powers being corrupted. So instead of using it for good in the My Hero Academia world, the character starts to cause chaos. This could lead to a moral dilemma for other characters as they have to decide whether to try and save their friend or stop them at all costs. It adds a lot of drama and conflict to the story.
One common plot twist could be that the Gamer abilities interact with the My Hero Academia world in unexpected ways. For example, the character with Gamer powers might suddenly discover a new 'game level' that is actually a secret villain lair in the MHA universe. Another popular plot twist could be the origin of the Gamer powers being tied to some ancient MHA legend. Maybe it was a power passed down from a forgotten hero who was also a gamer in a sense.
One popular plot twist could be the protagonist using 'The Gamer' abilities in unexpected ways during a major battle in the My Hero Academia world. For example, they might use a gaming - like inventory system to pull out a super - rare item that gives them an edge against a powerful villain. Another could be the fusion of My Hero Academia's Quirk system with 'The Gamer' leveling system, where a character's Quirk gets upgraded in a way similar to leveling up in a game.
Some characters might be intrigued. For example, Izuku Midoriya would probably be very interested in understanding how the Gamer Sparda powers work. He would see it as a new type of quirk to study and might try to find ways to incorporate the strategies used in the 'game' aspect into his own hero training.
One interesting plot twist could be the main character's gamer abilities suddenly evolving in an unexpected way. Maybe they gain a new power that completely changes the way they interact with the world of My Hero Academia. For example, instead of just having enhanced physical stats like in the game, they can now manipulate time briefly, which throws off all their enemies and allies alike.
Well, in some fanfictions, there might be a plot twist where the future that is being watched is actually an alternate and false future created by a powerful villain. This would completely change the characters' understanding of what they need to do to prevent it. Also, perhaps a character who has been in the background suddenly reveals a powerful and unexpected quirk that saves the day.
A plot twist could be that the Quirk system and Stands are somehow related. Maybe there was an ancient event that split the power into two forms. This would open up a whole new exploration of the lore in both universes. Characters would have to reevaluate their understanding of their own powers and how they interact with those from the other universe.
A really interesting plot twist could be that the symbiote from the Spider - Man universe attaches itself to a major villain in My Hero Academia. This would make the villain even more powerful and unpredictable. The heroes would have to figure out how to deal with this new threat that has a combination of a quirk and the symbiote's abilities.
Katsuki Bakugo is also a common character. His explosive personality can be interestingly combined with the gamer concept. Maybe a gamer - like Bakugo who is always looking for the next 'level up' in terms of his quirk strength and hero status, constantly challenging others in a competitive, almost game - like way.
The combination of the 'gamer' concept with 'My Hero Academia' is appealing. It allows for a different take on the existing powers and abilities in the show. For example, characters can level up their quirks like in a game, which is a fresh idea.
One popular trope is the 'Quirkless Hero' where a character without a quirk manages to become a hero through sheer determination and intelligence. Another is 'Villain Redemption', where a villain decides to change their ways. 'Time Travel' is also quite common, with characters going back in time to fix things in the My Hero Academia universe.
One popular plot twist is when the OC's cheat ability is suddenly revealed to have a major drawback. For example, it might seem like they can instant - teleport anywhere, but it actually drains their life force each time they use it. Another is when the OC, using their cheat gamer skills, accidentally changes the entire Naruto universe's power balance, leading to unexpected alliances and enmities. For instance, if they introduce a new jutsu that makes all existing combat techniques seem obsolete, it forces the characters to either adapt or oppose the OC in new ways.