Well, it varies depending on the comic series. Sometimes, it's been a combined effort of multiple superheroes like the Fantastic Four and others. Each encounter has its own unique circumstances and outcomes.
Galactus' fate in the comics is complex. It's not straightforward to say who exactly killed him as it often involves multiple factors and characters coming into play. Different storylines present different scenarios.
Besides Naruto and Sasuke, Sakura could also be a main character in such fanfiction. Her medical ninjutsu skills might be needed to heal the wounded during the battles against Galactus. And there could be some original characters created specifically for the fanfiction who have some special knowledge or power related to Galactus and the Naruto world.
There could be new villains from the cosmos. Since Naruto is the son of Galactus, other cosmic entities who oppose Galactus might target Naruto. For example, some powerful alien race that wants to get rid of any trace of Galactus' bloodline. They could send their most powerful warriors to the ninja world to take on Naruto.
There's a 'galactus crossover fanfiction' that involves Galactus and the Doctor from 'Doctor Who'. This one is really cool as it takes the concept of Galactus' destruction and the Doctor's ability to time - travel and save planets. The story has some really creative plot twists. For example, the Doctor tries to find a way to satiate Galactus' hunger without sacrificing entire planets. It's a unique blend of two very different fictional universes.
Galactus was once a mortal named Galan in the pre - Big Bang universe of Taa. As the universe was about to end in a cataclysm, Galan entered a life - pod with some other survivors. But the pod entered a radiation - filled area near the Big Bang. Galan was transformed by this intense energy and became Galactus, a being with an insatiable hunger for planets to sustain his vast power.
Wu Zhu was considered one of the grandmasters at the peak of martial arts and possessed powerful sword techniques. The Shadow was Chen Pingping's personal guard. Although he had been taught by Wu Zhu, his strength was not as good as Wu Zhu's. Thus, according to the information provided, the shadow was unable to defeat Wu Zhu. In addition, the Qing Emperor was described in " Celebrating Years " as the pinnacle of human combat power. He possessed top-notch mental strategies and martial arts. The Qing Emperor practiced Tyrannical zhenqi, which contained a lot of zhenqi. However, other than zhenqi, the Qing Emperor was not much different from ordinary people. Although there was no clear mention of whether the Qing Emperor could defeat Wu Zhu, according to the information provided, Wu Zhu's strength was considered invincible, so it could be inferred that Wu Zhu could not be defeated.
Emperor Qing defeated Wuzhu in "Celebrating Years." Although Wu Zhu had powerful strength and special abilities, the Qing Emperor was the true leader of the Four Great Grandmasters. His King Path Fist and Tyrannical zhenqi were both very powerful. In their battle, the Qing Emperor won by a narrow margin and defeated Wu Zhu. In addition, Fan Xian also participated in the final battle. In the end, the Qing Emperor was secretly killed by Fan Ruoruo. Thus, the Qing Emperor was the only person who had defeated Wu Zhu in " Celebrating Years."
To write a good 'galactus crossover fanfiction', start with a great concept. Think about how Galactus' all - consuming hunger could impact the other world or characters you're bringing in. Develop your characters in a way that stays true to their original selves but also allows for growth within the new story. Also, don't be afraid to introduce new elements or rules that are specific to your crossover. For instance, if Galactus enters a magical world, how does his power interact with magic? Detail is key. Describe the new settings, the reactions of the characters, and the consequences of their actions. It should be a story that both fans of Galactus and the other crossover element can enjoy.