The 'godzilla in hell graphic novel' probably has a plot centered around Godzilla finding himself in hell. Maybe he's there because of some sort of interdimensional rift or a powerful force that sent him there. In hell, he might encounter demons or strange and powerful entities that are native to that place. He would then use his atomic breath and brute strength to fight his way through, trying to find a way out or establish his dominance in this new and terrifying realm.
I recommend "The Beggar's Top Scholar's Book in Red." This novel tells the story of the female protagonist transmigrating to the underworld and fighting against the King of Hell and other bastards. I hope you like this fairy's recommendation. Muah ~😗
Another possible theme is transformation. The experience of going to hell and back is likely to change a person. In the 'To Hell and Back Novel', the characters may start as one type of person, but through their harrowing journey, they are transformed into someone different, having learned valuable lessons and grown as individuals.
The main theme could be about the struggle between good and evil. In many novels with such a title, characters often face internal or external forces that seem to drag them into a metaphorical 'hell', which can represent moral decay, difficult situations, or a descent into the darker aspects of human nature.
Well, 'A Season in Hell' often centers on themes like existential angst, the pain of isolation, and the quest for redemption. It delves deep into the human psyche and the challenges of finding one's place in society.
The main theme might be about the human experience in a dual - natured world. It could be about how people find their place between the ideal (heaven) and the worst (hell). It might also deal with redemption or the fall of characters. If it's a fantasy novel, perhaps there are supernatural elements that play into this concept of being between two extreme states. For example, a character might have to fight against dark forces from 'hell' while also trying to reach a state of grace or 'heaven'.
A better theme could be their epic battles. For example, fanfiction could explore different strategies they use against each other in various locations. This would stay true to their nature as powerful and often - at - odds creatures in the movies.