There was no specific information about the Gundam's killing move against the Gundam. The search results mentioned some ultimate skills in the Gundam series, but it did not specify what the ultimate skill was. Therefore, based on the information provided, I am unable to answer this question.
In the 'gundam graphic novel', you can expect to find the Gundam pilots as main characters. They are usually young and have to bear the great responsibility of operating these advanced war machines. There could be other important characters as well, such as the engineers who maintain the Gundam suits, providing crucial support. And don't forget about the antagonists, the ones who oppose the Gundam pilots and their allies. These characters create the conflict and drive the story forward.
Char Aznable is one of the main characters in the Gundam Origin Story. He plays a significant role in the events leading up to the Gundam's creation and the early conflicts.
Typically in Gundam Seed - related works, we might expect characters who are skilled in piloting mobile suits. There could be characters from different backgrounds, such as those from space colonies and Earth. They may have different motives, some fighting for justice, others for the interests of their respective groups. Without reading the 'Gundam Seed Freedom Novel' specifically, it's hard to name the exact main characters, but they are likely to be characters with strong personalities and a sense of purpose within the complex world of Gundam.
In the 'Gundam Unicorn Graphic Novel', Banagher Links is a key character. He is a young and somewhat naive character at the start who gradually matures through his experiences with the Gundam Unicorn. Audrey Burne, also known as Mineva Zabi, is another important figure. She is related to the Zabi family which has a complex history in the Gundam universe. There are also military characters like Captain Otto Mitas, who contribute to the story's military aspects and their interactions with Banagher and Audrey are crucial to the plot development.
In 'new gundam breaker story', the main characters are most likely to be the Gundam pilots. These individuals are in charge of their respective Gundam units. They have to navigate through the challenges of the story's world, which includes battles and customizing their Gundams. Their skills, personalities, and relationships with each other would be important aspects of the story. There could also be some supporting characters like technicians who help with the Gundam maintenance and upgrades.