Yes, there might be some out there. You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'naruto makes fluctlight' in their search bars and see what pops up.
Perhaps in this fanfiction, Naruto is on a mission in a strange dimension and stumbles upon the Fluctlight system. He realizes that the essence of Fluctlight is similar to the chakra within his world in some ways. So, he decides to study it further. As he delves deeper, he finds that there are beings trapped within the Fluctlight system, and he uses his ninja abilities to free them. This, of course, angers the creators of the Fluctlight system who see Naruto as a threat to their control. So, Naruto has to fight against them while also trying to find a way to bring the freed Fluctlight beings back to his world safely.
In some fanfictions, Naruto might be feared due to his overwhelming power. For example, if he has some new and extremely dangerous jutsu that others can't understand or counter. It could also be because he has changed his personality to be more cold - blooded and less forgiving, which is a departure from his original kind - hearted self in the official story.
Well, in such a fanfiction, Naruto might be unkillable because of some special power-ups. Maybe he has some kind of indestructible chakra shield that constantly protects him from any harm. It could also be due to a unique bond with a powerful entity that grants him immortality. Another possibility is that his willpower is so strong that it literally defies death, allowing him to survive any fatal situation.
In fanfiction, Naruto can be considered a prodigy often because of his unique abilities. For example, his natural talent for learning new jutsu quickly. He might also show extraordinary leadership skills from a young age, which sets him apart and makes him seem like a prodigy.
The power system in Naruto is one factor. The idea of chakra and how it can be manipulated in various ways is quite experimental. It allows for a wide range of abilities and combat styles. Also, the character arcs often deviate from typical hero - villain dynamics. For example, some characters have complex motives that are not simply good or bad.
In fanfiction, Naruto can be made invincible by changing the rules of the Naruto universe. Maybe the author decides that there are no limits to how much he can train or that he has a special bloodline trait that no one else has. Also, if the author decides to remove all his enemies' advantages, it can make Naruto look unbeatable.
Well, one thing that makes a Naruto fanfiction funny is when the characters are put in out - of - character situations. For example, if Naruto, who is usually brave, suddenly becomes extremely cowardly in a comical situation. Another factor is the use of humor in dialogue. When the characters say witty and sarcastic things to each other, it can be really funny. Also, when the author takes a normal Naruto scenario and twists it in a completely unexpected and absurd way, like making the chakra system work in a really strange and humorous way.
A great plot is key. It could be an alternate universe where Naruto is raised differently, or a new threat to the Hidden Leaf Village that is more complex than the ones in the original. Also, good writing quality, like proper grammar and vivid descriptions, helps. For instance, if it can describe a battle scene in a way that makes you feel like you're right there in the action, it's a sign of a better fanfiction.
Well, the characters being in - character and showing their softer sides can make it adorable. For example, seeing Naruto's innocent love for ramen in a cute way, like he daydreams about different ramen flavors while on a mission.