One idea could be that Bender and the Robot Devil get into a competition to see who can steal the most valuable items in the universe. Another could be that they team up to prank all the other robots in town. Maybe they start a robot - only casino together as well.
Well, a possible plot could be that the Robot Devil, being his devious self, tries to trick Bender into selling his soul (or whatever the equivalent is for a robot) for some grand but ultimately false promise like becoming the most powerful robot in the galaxy. Bender, initially tempted, has second thoughts when he realizes his friends might be in danger because of this deal. So, he has to outwit the Robot Devil to break the deal. It could involve a series of comical and high - stakes adventures where Bender uses his street - smart nature against the Robot Devil's cunning.
A plot could involve Bender getting into debt with the Robot Devil, not for the usual reasons like gambling or over - spending, but because he accidentally damaged one of the Robot Devil's prized possessions (maybe a rare antique robot part). The Robot Devil then forces Bender to work for him. While working, Bender discovers a secret about the Robot Devil that could either be his downfall or a way to get out of his debt. This leads to a journey of self - discovery for Bender as he decides whether to use the secret to his advantage or do the right thing.
Another option could be a group of rogue robots who have their own set of rules and don't like the idea of Bender and the Robot Devil being so prominent. They could band together to try and take over the areas that Bender and the Robot Devil operate in. They might be more brutal and less interested in the games and deals that the Robot Devil usually plays, making them a very different kind of antagonist compared to the Robot Devil.
One idea could be to create an alternate universe where the mecha pilots have different personalities. For example, a usually serious pilot could be more laid - back. Another could be a story where the villains from different series in Super Robot Wars X team up for a new and unexpected threat. This would force the heroes to also form new alliances among themselves.
One idea could be that Naruto is turned into a girl by a strange jutsu accident. The members of his harem could include Sasuke, who is now intrigued by this new Naruto, and Sakura, who becomes more protective. Another could be that Naruto enters a new dimension where gender roles are reversed for everyone, and he has to navigate this new world while building his harem.
Well, a plot might involve a devil approaching a young and inexperienced Hunter. The devil offers the Hunter a deal to become the most powerful Hunter ever in return for the Hunter's soul after a certain period. As the Hunter rises in power, they attract the attention of other Hunters, some who suspect something is wrong. This could lead to a conflict between those who want to help the Hunter break the deal and those who see the Hunter as a threat due to their newfound and possibly dangerous power. Also, the devil could be using the Hunter to start chaos in the Hunter x Hunter world for its own mysterious reasons.
A time - travel plot would also be cool. A mecha pilot accidentally travels back in time and has to work with the predecessors of their own team. They have to find a way to get back to their own time while also ensuring that the events they change in the past don't have catastrophic consequences for the future of the Super Robot War world.
One idea could be a crossover within the Super Robot Wars universe. For example, having characters from different series team up in unexpected ways. Maybe a pilot from a mecha series that focuses on speed teams up with a more defense - oriented mecha pilot to face a new and powerful enemy that requires both their skills.
One idea could be that the fem robot is created by Orochimaru for some evil purpose, but Naruto befriends her and she starts to develop emotions. She then helps Naruto fight against Orochimaru's other creations. Another could be that the fem robot is from a far - off land and Naruto meets her during one of his travels. She has unique powers that Naruto has to learn to work with in order to save the village from a new threat. A third plot idea is that the fem robot is a failed experiment by Konoha's scientists, and Naruto takes it upon himself to fix her and in the process, they form a special bond.
One idea could be that an angel and a devil are forced to work together to save the world from a greater evil. They start off hating each other but gradually learn to respect and even care for one another.
One idea could be a character with a devil bloodline being initially shunned in the Hidden Leaf Village but then proving their worth in a major battle. For example, they could use their unique devil - like abilities, such as enhanced speed and strength, to turn the tide against a powerful enemy.
One interesting idea could be seeing Batman as a female and how she might approach crime - fighting differently. For example, she might use more stealth and manipulation in a different way than the male version.