Survival in a new environment is another theme. Naruto characters suddenly in the Metroid universe, or vice versa, have to figure out how to survive. They need to adapt to new threats, whether it's the space pirates in Metroid or the powerful shinobi in Naruto. This theme adds a lot of excitement and adventure to the fanfictions.
Power - up and evolution is also a common theme. In the Metroid series, Samus has different power - ups and her suit evolves. In Naruto, the characters grow in power through training and new jutsu. In crossovers, often Naruto will experience something like a power - up similar to Samus' suit upgrades, or Samus might learn about the concept of chakra and use it in a new way, which ties into this theme of power - up and evolution.
One main theme is adaptation. Naruto has to adapt to the new rules and environments of the Metroid universe.
In 'Metroid male oc fanfiction', the theme of power and its implications is quite common. The male oc might gain new powers or struggle with the power he already has. This could lead to internal conflicts as he decides how to use his power. Another theme is loyalty. He could be loyal to a certain faction or character, or he might face situations where his loyalty is tested. And of course, the overarching theme of the fight against the Metroid - related threats is always present, whether it's the Metroids themselves or other villains in the series.
Well, a lot of 'female ridley metroid fanfic' often has the theme of identity. Given that it's a different take on the traditional Ridley character, the fanfic might explore how the female Ridley defines herself within the Metroid universe. Also, themes of survival are common. The Metroid world is a dangerous place, and a female Ridley has to fight to survive just like any other character. There are also some fanfics that touch on the theme of friendship or alliances, showing how she might form different relationships compared to the male Ridley.
One common theme could be the growth and development of the baby character in the Metroid universe. Maybe it's about how the baby adapts to the dangerous and strange environment.
The baby metroid itself can be considered a central 'character' in its own right. It has its own behaviors and reactions that can influence the other characters around it. For example, its need for energy or its growth spurts might force the other characters to make certain decisions. And of course, there may be characters from the Metroid universe's background lore that show up to interact with the baby metroid situation, like the Chozo who have a connection to the Metroids in the official lore.
The crossovers where Naruto gets to use Samus' weapons are really interesting. For example, when he wields the Arm Cannon. It's a completely different kind of weapon compared to his kunai and shuriken, and it gives him a whole new combat style.
One common theme is character relationships. For example, exploring the deepening friendship between Naruto and Sasuke, or Naruto's romantic relationships with characters like Hinata. Another theme is the expansion of the ninja world. Writers might create new villages, new ninja clans, or new jutsu. Also, the idea of alternate universes is popular, where the events in the original 'Naruto' series take a different turn.
One common theme is alternate universes. Writers often like to create scenarios where Naruto and his friends are in a different world altogether, like a modern - day setting or a fantasy world other than the ninja world. This allows for a fresh take on the characters.
One common theme is the passing of the torch. Older Naruto is often shown mentoring the younger generation, like how Kakashi mentored him. Another theme is dealing with the scars of past battles, both physical and mental.