Batman could be another interesting crossover. Batman's dark and brooding nature would contrast with Cage's more flamboyant style. They could be forced to team up to solve a mystery that involves some sort of magic or otherworldly elements, which would be new territory for Batman and something Cage is more used to in the Mortal Kombat realm.
His character could also be developed through learning new fighting styles. In the crossover, he might encounter a Mortal Kombat master who teaches him a more disciplined and deadly form of combat. This not only makes him a more formidable fighter but also changes his attitude towards fighting. He becomes more respectful of the Mortal Kombat traditions and incorporates them into his own flamboyant style.
How about a crossover with the 'Teenage Mutant Ninja Turtles'? Johnny Cage could end up in New York City's sewers and meet the turtles. He'd be initially shocked but then impressed by their ninja skills. They could all work together to stop Shredder from getting his hands on some powerful ancient artifact that Cage was also after.
I think Deadpool would be a great crossover character with Johnny Gat. They both have a crazy sense of humor and are not afraid to get into some wild and violent situations. Their banter would be hilarious as they fight side by side against bad guys.
Maybe Johnny Cage is suddenly part of a Mortal Kombat tournament in a crossover. He uses his acting skills not just for show but as a strategic advantage. For example, he could pretend to be injured to lure opponents into a false sense of security and then strike back with a powerful combo. His showbiz connections could also play a role, like getting access to some special weapons or training techniques that no one else in the Mortal Kombat world has thought of.
First, know the characters well. Read up on their backstories, personalities, and relationships in the original source material. Then, come up with a unique plot. It could be something that builds on existing storylines or a completely new adventure for them. Also, focus on their dialogue. Johnny is often more light - hearted and Sonya is more serious, so play with that dynamic. And don't forget to describe their actions vividly during fight scenes or emotional moments.
A Johnny Bravo crossover with Dexter's Laboratory would be interesting. Johnny might stumble into Dexter's secret lab, thinking it's some kind of cool hangout. Dexter would be initially annoyed but then they could team up to stop a common enemy, like an evil robot that has escaped from Dexter's lab and is causing chaos in the city. Or a crossover with Courage the Cowardly Dog. Johnny goes to visit Courage's farmhouse and gets caught up in all the spooky happenings there.
Well, you could start by looking on Tumblr. There are many fans who post their Johnny Cage fanfics there. You might need to use the search function and type in 'Johnny Cage fanfic' specifically. Also, check out some dedicated Mortal Kombat fan forums. Fans often share their creative works, including fanfics about Johnny Cage in those forums.
The story begins when a strange portal opens in Konoha. Out of it steps Johnny Test. Naruto is immediately curious. Johnny explains that he was working on a new invention and it accidentally opened a portal to this strange place. Naruto decides to show Johnny around Konoha. Johnny is amazed by the ninja academy and the training grounds. Meanwhile, some rogue ninjas from another village see Johnny as an easy target. But they soon realize their mistake when Naruto steps in. Naruto uses his ninjutsu to fend them off. Johnny, feeling useless, decides to use his brain. He quickly comes up with a plan using some of the materials he has in his backpack. He creates a device that disrupts the ninjas' chakra flow. With their combined efforts, they defeat the rogues. In the end, Naruto and Johnny exchange gifts. Naruto gives Johnny a kunai as a memento and Johnny gives Naruto a mini - gadget that can detect hidden enemies. Johnny then returns to his own world through the portal.
The sorceress Sindel could also be a main antagonist. She may believe that the relationship between Johnny and Mileena goes against the natural order of things. She could use her powers to create illusions and misunderstandings between them. Also, she might be trying to protect some ancient Outworld secret that she thinks Johnny Cage is getting too close to through his relationship with Mileena.
One popular 'johnny cage x raiden fanfic' story could be about their unexpected team - up in a battle against a common enemy. In this fic, Johnny Cage's brash and showy fighting style might contrast with Raiden's more reserved and powerful moves. They could start off not getting along but gradually develop a mutual respect as they face challenges together.