Yes. This event occurs as a significant plot development and has a major impact on the story. Mikasa's action is driven by complex emotions and circumstances within the narrative.
In the Naruto canon, Naruto would never kill his mom. However, in some extremely dark and non - canonical fanfictions, the author might create such a scenario for shock value. But this goes completely against the spirit of the original series. Naruto is a story about love, friendship and growth, and such a plot is a very perverted deviation from it.
If such a fanfiction exists, a possible motive could be some kind of mind - control. Maybe an enemy uses a powerful genjutsu on Naruto, causing him to lose his sense of self and attack his mom. But this is still a very far - fetched and unethical concept within the Naruto world.
Well, if that happened in fanfiction, it would likely create a major rift within the superhero group. It could also lead to some intense action sequences and emotional moments as Tony tries to defend himself and understand Bucky's motives.
It might be. Since both Naruto and Attack on Titan have huge fan bases, a fanfiction like this can attract a lot of attention. The idea of Naruto, with his unique abilities, stepping into the world of Attack on Titan to save Eren's mom is full of potential for creative and exciting storylines. For example, Naruto could use his shadow clone jutsu to deal with the Titans while trying to reach Eren's mom in time.
Well, sometimes he uses his titan's speed and agility to dodge the Colossal Titan's attacks and then strike at its nape. It's a classic way to take down a titan in the Attack on Titan universe.