In addition to Geo, his partner Omega - Xis might also play a significant role. They usually work together, so in this fanfiction, Omega - Xis could be providing commentary or analysis as they watch the battles in Death Battle. And Luna Platz might also be there, adding her own reactions and insights.
It's also possible that some of the more iconic characters from Death Battle might make an appearance in a different way. Maybe they are the ones being watched, like some of the well - known fighters from different franchises that are often featured in Death Battle. Their actions and abilities would be on display for the Megaman Starforce characters to observe and react to.
Obviously, Megaman Starforce and Megaman Rock would be the main characters. They are the ones the title focuses on. Maybe their respective sidekicks or friends could also play important roles, like Geo's friends in Starforce and Rock's allies like Roll.
Well, it could also be that the fanfiction has a plot point where the Megaman Starforce characters try to interfere in the Death Battle scenarios. They might feel the need to stop a particularly brutal fight or prevent an unfair match - up, which would create a whole new dynamic and conflict in the story.
Definitely Geo Stelar from Megaman Starforce and X from Megaman X. Geo has his own set of skills and X is iconic in his series. They would be the natural leaders to start interactions between the two groups.
Obviously, the Z Fighters like Goku, Vegeta, Piccolo, etc. are the main ones as they are the ones doing the watching.
Obviously, Megaman Star Force and Megaman Rock would be the main characters. They are the key figures from their respective series.
Obviously, Sonic himself is extremely popular. He's the main character, after all. Tails also often makes an appearance as Sonic's sidekick. Knuckles is another popular one, with his strength and connection to the Chaos Emeralds. And then there are the villains like Dr. Eggman who are frequently part of the death battle scenarios in these fanfictions.
In 'akatsuki watches death battle fanfic', the Akatsuki members themselves would likely be the main characters in the sense that they are the ones observing. It could be Itachi, with his calm and calculating nature, who might be making astute observations about the fanfic's battles.
They could interact in combat situations. For instance, the ninjas' combat skills could be combined with the cybernetic abilities of Megaman Starforce characters. Naruto's Rasengan could be enhanced with Megaman's energy blasts in a joint attack against a powerful villain.
Omega - Xis would be a great addition. As a powerful EM - being, his abilities could complement or contrast with Black Ace's. They might engage in battles or form an unexpected alliance. Also, Sonia Strumm could be included. Her musical talents and her role in the series could bring a different dynamic, perhaps she could use her music to enhance Black Ace's powers in some way.
Obviously, characters from Konoha will be central. Naruto might be one of the main characters as he often represents the heart of Konoha. His ability to change things could be key in how Konoha responds to the future it sees.