Who could be potential crossover characters in a 'Kamen Rider Kickhopper Crossover Fanfic'?

Well, perhaps the fanfic could revolve around Kickhopper finding himself in an alternate universe where the rules of being a Kamen Rider are different. He has to adapt and form a crossover alliance with a local hero. They start by comparing their transformation devices and learn from each other's fighting styles to defeat a group of interdimensional thieves who are stealing important artifacts from both universes.

In terms of anime characters, Ichigo Kurosaki from 'Bleach' could be an interesting addition. His ability to see and fight spirits could be related to Kiva's battles with Fangires. They could end up in each other's worlds and have to learn to use their powers together to fight off both Hollows and Fangires.

Iron Man would also be an interesting crossover character. With his high - tech suit, he could team up with Kamen Rider Mach. They could share technology and upgrade each other's gear. Imagine them combining their firepower to take on a huge mecha - like enemy. Iron Man could provide aerial support while Mach attacks from the ground.

In a crossover with Kamen Rider Decade, Decade could be a potential ally. Decade has the ability to travel through different Kamen Rider worlds and could help Cronus if they find themselves in a complex multi - world situation. Also, Kamen Rider Kuuga might be an ally. Kuuga has a strong sense of justice and his raw power could complement Cronus' more calculated fighting style.

For a 'Kamen Rider crossover feudal Japan' fanfic, a Kamen Rider would be a must - have main character. In addition, a ronin, a masterless samurai, could be another main character. This ronin could have his own code of honor and be very skilled in combat. He and the Kamen Rider might meet in a dangerous situation, like being chased by bandits. And there could also be a young princess who is caught in the middle of a political intrigue in the feudal court. The Rider and the ronin might end up protecting her and in the process, get involved in the larger events of feudal Japan.

Kamen Rider Decade would be an excellent choice. Since Decade can travel between different Kamen Rider worlds, it would be easy to create a story where he and Orga meet and team up. Another good option is Kamen Rider Kuuga. Their different fighting styles and powers could create an interesting dynamic. Also, Ultraman could be a great crossover character. The contrast between the Kamen Rider and Ultraman universes would make for a very exciting story.

Kamen Rider Decade is often a popular choice. His ability to transform into other Riders makes him a natural for crossovers. He can bring in elements from different series and connect various storylines together.

Definitely other Kamen Riders like Kamen Rider Kabuto. Their different powers and personalities would make for an exciting crossover. They could team up with Faiz to fight a common enemy or have a friendly rivalry.

An interesting antagonist for a crossover could also be an evil Kamen Rider from a parallel universe. Let's say there's a version of a well - known Kamen Rider who has turned to the dark side. This evil Rider could be jealous of Chalice's powers and wants to take them for himself. He could be forming alliances with other villains from different Kamen Rider series in order to achieve his goal, making him a formidable and complex antagonist in the crossover story.

Well, if we consider other shonen - style series, someone like Naruto from 'Naruto' could be a potential crossover character. His ninja skills and strong will could create some interesting dynamics with the 'world trigger' characters.