One common theme is the clash of cultures. Goku comes from a world of martial arts and honor, while Revy is from a more violent and lawless world. Their coming together often leads to exploring how these different backgrounds interact.
Power - up is also a theme. Since Goku has his Saiyan power - up abilities, some fanfics explore how Revy might be affected by his power or how she could contribute to his growth in a different way. It's about how their powers combine or contrast. For example, Goku's super strength and speed against Revy's marksmanship. And also, friendship and mutual respect tend to be themes. As they get to know each other, they learn to respect each other's skills and personalities, which forms a strong bond between them that is often a central part of the story.
Adventure is a major theme as well. Writers like to send Goku and Revy on various adventures, whether it's exploring new planets in Goku's universe or taking on powerful gangs in Revy's world. These adventures not only test their physical abilities but also their relationship as they rely on each other to get through tough situations.
One common theme is the exploration of their opposite personalities. Revy is wild and impulsive while Rock is more calm and rational, and fanfics often play with how these differences interact.
The theme of love against all odds is also quite prevalent. Given their different origins and the fact that Goku is already married in the original story, their relationship in fanfics has to overcome many obstacles. This could be social, moral or even physical (like dealing with other powerful characters who oppose their union), but they still find a way to be together, which makes for an interesting read.
A common theme is the exploration of their complex relationship. Revy is tough and Rock is more of an ordinary guy in a sense, so the fics often play with how they interact and grow closer. Another theme could be adventure, as they are in the dangerous world of 'Black Lagoon' and fanfics might send them on new and exciting escapades together.
Another theme is power transfer or inheritance. Some fanfics might have Bardock passing on some hidden power or knowledge to Goku. This could be related to their Saiyan abilities or some special technique that only their family line can access. There is also the theme of redemption in some cases. If Bardock is brought back in a fanfic, he may seek to atone for his past actions through his relationship with Goku.
One common theme is the discovery of love. Goku, being somewhat naive in matters of the heart, gradually realizes his feelings for Launch. Another theme is adventure. They often go on quests together, which strengthens their bond.
One common theme is rivalry - turned - friendship. Their long - standing rivalry in the original series is often explored in fanfics as a starting point that then evolves into a deeper connection.
One common theme is redemption. Since Broly is often portrayed as a villain initially, many fanfics focus on his journey towards redemption with Goku's help. For example, Goku might show Broly a different way of using his power, leading Broly to change his ways.
Love and family are very common themes. Their relationship is often depicted as a strong bond that withstands Goku's adventures and battles. Chichi is usually shown as the stable presence in Goku's life, and their love story is central.
One common theme is the power of friendship. Despite their differences, Goku and Bulla often form a deep bond in fanfics. Another theme is adventure. They usually go on some kind of exciting journey together, like searching for a powerful artifact or saving the world from a new villain.
Friendship is a very common theme. Their long - standing bond from childhood is often explored.