Another theme could be perseverance. Tails, even when hurt, often tries to keep going or contribute to the situation. He doesn't let his injury completely stop him, which is an inspiring theme.
One common theme is friendship. When Tails gets hurt, his friends like Sonic usually come to his aid. This shows the strong bond between them.
Often, there could be a theme of adjustment. Tails having to adjust to his new, larger body. This could involve things like how he moves around, his confidence levels, and how he interacts with the world around him. It might also touch on themes of body image, as he might struggle with how he looks now that he's fat. There could also be a sense of adventure where he has to overcome new challenges because of his size, like fitting through small spaces or being slower in movement.
One common theme is the rescue mission. The friends of Tails will usually band together to save him. For example, Sonic will use his speed to find out where Tails is held and then they will all figure out a plan to break him out.
The theme of hope in the face of adversity is also present. Despite Levi getting hurt, the fanfiction may show how the characters around him and he himself still hold on to hope for recovery and victory in the long run.
One common theme is sacrifice. Sans often gets hurt while protecting someone or something he cares about, like his friends or the Underground. It shows his selfless nature.
One common theme is the test of the relationship between Belle and the Beast. When Belle gets hurt, it shows how the Beast reacts and whether he truly cares for her. Another theme could be the idea of sacrifice. Maybe Belle gets hurt while trying to protect something or someone in the story.
Well, often in Sonic gets hurt fanfiction, a common theme is the reaction of the Sonic universe characters. Characters like Knuckles might be in disbelief at first that Sonic could be so hurt. There's also the theme of Sonic's internal struggle. He might be frustrated that he can't be as active as he wants. And sometimes, there are themes related to the cause of the injury, like if it was a powerful new enemy that managed to harm him, which then sets up a revenge or recovery arc.
One possible 'tails gets hurt fanfiction' could be about Tails getting injured during a battle with a new villain in Sonic's world. Maybe he overexerts his flying abilities and crashes, leading to an adventure where his friends have to help him recover.
One common theme is adventure. Tails is often portrayed going on exciting quests. For example, he might be searching for a lost artifact or exploring a new, uncharted land.
One common theme is the power dynamic between Link and Ganondorf. When Link gets hurt, it often shows how vulnerable he can be in the face of Ganondorf's power, which can create a lot of tension in the story.
The theme of heroism is also present. Timmy becomes the hero in these stories, even if he gets hurt. His actions inspire Trixie to be braver herself. And there could be a theme of redemption, especially if in the normal story arc Trixie has been mean to Timmy, but now she has a chance to make it up to him as he's injured because of her.