A young and determined trainer named Kai could be a main character. He has a Pikachu that he has trained to use ninja - like moves, such as lightning - fast dodges. Kai is always eager to take on new challenges and prove himself as a great pokemon ninja trainer.
There could be a female character, Ayumi. She comes from a long line of pokemon ninja trainers. Her main pokemon is a Eevee that she has taught to transform into different forms for different ninja - like functions. Ayumi is very strategic and often uses her wits more than brute force in battles.
One idea could be a group of pokemon ninja trainers who have to protect a rare and powerful pokemon from an evil organization. The trainers could use their ninja skills, like stealth and quick attacks, along with their pokemon's abilities to outwit the villains.
Often, the main characters are still the trainers and their pokemon, but with their roles switched. So the pokemon that were secondary characters in the original concept become the ones driving the story. For example, Pikachu could be the main character leading Ash around instead of the other way.
Hermione Granger could also be a main character. With her intelligence, she would be quick to learn ninja techniques and could even help improve them with her knowledge of magic. She might study the ancient ninja scrolls and find ways to combine the knowledge of both worlds for the greater good.
Obviously, Ash is one of the main characters. He is usually at the center of the story, using his skills as both a Pokemon trainer and a ninja. Pikachu is also a very important character, often using its electric powers in combination with Ash's ninja - like strategies. Sometimes, other trainers like Brock and Misty can also be important characters, providing support or joining in on Ash's ninja - themed adventures.
Maybe an older priest who has a long - time companion Pokemon, like a Growlithe. He uses his experience with both the church and Pokemon to guide the younger members of the congregation, especially those who are also trainers. He helps them see how their Pokemon can be a part of their faith and not just for battling or collecting.
The main character could be a young trainer named Ash. He's always eager to learn more about Pokemon and is very friendly. Another character could be Misty, a girl who is really good with water - type Pokemon and is a bit of a tomboy. There could also be Brock, who is knowledgeable about Pokemon care and often gives advice to other students.
I don't know the specific main characters in 'the ninja gamer fanfic' as it can vary greatly depending on the author's creation. But it could be a ninja - named protagonist like 'Kai' who is also a top - notch gamer.
A young trainer from an underdog region who rises to be a leader in the war effort. He or she could have a unique bond with a Pokemon that gives them an edge in battles.
Another possibility for main characters could be Rainbow Dash from MLP and Blastoise from Pokemon. Rainbow Dash is brave and loves adventures, which would be perfect for exploring the new Pokemon world. Blastoise is strong and reliable. They could form a great team, with Rainbow Dash using her speed to scout ahead and Blastoise using its water attacks to protect them from danger.
It could be an experienced trainer who has a team of fully - evolved Pokemon. This trainer might be taking a break from their usual battles and just wants to relax at the beach with their Pokemon pals. Maybe they have a Charizard that enjoys sunbathing on the warm sand.