Well, it depends on how you look at it. Technically, in official Kingdom Hearts content, Sora is a key character. But in the realm of fanfiction, many writers take the essence of Sora and create their own unique stories that are not part of the official canon but are still inspired by the Kingdom Hearts universe. So, in that sense, he can be considered as a major element in Kingdom Hearts fanfiction.
Another theme is friendship. Sora is all about making friends, and in crossovers, he forms new bonds with characters from different franchises. For example, he might become friends with Sonic the Hedgehog and they team up to fight a common enemy. It shows how his positive attitude can bridge different universes.
I really like 'Sora's Time - Travel Mishap'. It's a fun fanfiction where Sora somehow gets sent back in time. He has to deal with the consequences of changing the past while still trying to get back to his own time. It has some really cool interactions with younger versions of the characters we know. 'Sora's Hidden Power' is also a good read. It explores a new power that Sora discovers within himself, and how he uses it to fight against a new, powerful enemy.
Yes, in some fanfictions Sora might be depicted as afraid of X. Fanfiction writers often explore different aspects of characters' personalities, and fear can be an interesting trait to give to Sora. It could add depth to his character and create new storylines.
One great 'Kingdom Hearts Sora Crossover Fanfiction' is 'Sora in the World of Naruto'. It combines the unique powers and personality of Sora with the ninja world of Naruto. The story has some really exciting battles where Sora uses his keyblade skills against powerful ninja foes.
Another aspect could be how Sora's presence affects the balance of power in the My Little Pony world. His powers are quite different from what the ponies are used to. The villains in the My Little Pony world might see Sora as a new target or a threat. Meanwhile, the ponies might look up to Sora as a new hero, and his actions could inspire them to be braver and more adventurous in protecting their own world.
In Kingdom Hearts fanfiction about Sora's time travel, one common scenario is Sora going back to key moments in the series' history. This could be to prevent certain tragedies, like the fall of a particular world. He might use his Keyblade's power in new and unexpected ways during these time - traveling adventures.
Dark Sora in fanfiction is really an interesting concept. Fan writers have a lot of freedom to play around with his character. For instance, they can create scenarios where Dark Sora teams up with villains in a way that wasn't shown in the main story. Or they could delve into his past and show how certain events led to his transformation into a darker version. This gives a whole new perspective on the Kingdom Hearts world and the character of Sora as a whole.
One idea for fanfiction could be that Sora's mom left behind a hidden message or a special power for Sora. This power could be something that only awakens when Sora faces his greatest challenges. It could be a form of protection or a key to unlocking an even greater power within him.
There's a fanfiction called 'Under the Stars with Sora' which is quite charming. It's a more slow - paced story that focuses on the tender moments between Sora and the main character. The descriptions of the settings, like the different Kingdom Hearts worlds at night, are very vivid, creating a really immersive reading experience for fans of the series.