What are some interesting ideas for an 'oc gamer crossover fanfiction'?

One idea could be to cross 'The Gamer' with a popular fantasy manhwa like 'Tower of God'. The main character from 'The Gamer' could find himself in the Tower of God, having to use his unique gaming skills to climb the floors. Maybe his leveling system could interact with the Shinsu powers in the Tower.

One idea could be to have the Jojo characters enter a popular video game world like Minecraft. They could use their stands to build amazing structures or fight off mobs in unique ways. For example, Star Platinum could be used to mine blocks at super - fast speed.

One idea could be creating an OC who is a time - traveling gamer. They get sucked into the DBZ universe while playing the game. Another is an OC gamer who has the ability to level up like in a game within the DBZ world and uses that to gain unique powers.

One idea could be an OC with the Rinnegan who has the power to manipulate game glitches in the virtual world of the fanfiction. They could use it to their advantage, like teleporting within the game or accessing hidden areas.

Another interesting OC could be a Pokemon gamer who is also a scientist. They create a new type of Pokeball that has special abilities. In the fanfiction, they could face challenges from other trainers who want to steal this invention, while also using it to catch rare and powerful Pokemon. This OC's journey would be about not only collecting Pokemon but also protecting their scientific discovery.

One idea could be that Naruto gets a gamer power that allows him to level up his ninja skills like in a game. For example, he can see his progress in learning new jutsus as leveling up. Another could be a crossover with a popular game world where Naruto has to fight game bosses using his ninja abilities.

One idea could be that the Gamer's ability allows them to level up their Soul Reaper powers in Bleach. For example, they could start as a weak substitute Soul Reaper and through the Gamer system, they learn skills faster, like Ichigo did, but in a more gamified way. They might see stats for their Reiatsu, sword skills, and even their Hollow powers if they have any. Another plot could involve the Gamer character getting involved in the Soul Society's politics. Since they view everything like a game, they might accidentally or intentionally disrupt the traditional power balance while trying to complete quests related to the Soul Society.

One idea could be that the gamer character brings in unique gaming skills like leveling up abilities faster than normal in the RWBY world. This could disrupt the balance of power among the teams and create new rivalries or alliances as others try to figure out this new 'gamer' ability.

One idea could be a crossover where the SAO gamers find themselves in the world of a different game universe from SI (Self - Insert) fanfictions. For example, they might end up in a fantasy RPG world and have to adapt their skills from SAO to survive there. They could form alliances with the native characters of that world, which would create a lot of interesting interactions and storylines.

Perhaps the OC's Gamer system is glitched in a way that makes them perceive certain Grimm as video game bosses with specific attack patterns. They have to figure out these patterns to defeat the Grimm more effectively, adding an interesting twist to the battles in RWBY.