In some fanfictions, Sonic could be crying because of a misunderstanding among his friends. For example, his friends might think he has betrayed them due to some false evidence planted by Eggman. Sonic's tears in this situation would show his pain at being wrongly accused and his deep love for his friends.
There might be a fanfiction where Sonic is injured severely during a fight with a powerful new enemy. Unable to move and in great pain, Sonic cries out of frustration and fear. This kind of story can explore his inner thoughts and how he copes with his own vulnerability. It could also lead to a story arc of his recovery and revenge against the enemy.
One interesting Sonic x Sonic.exe fanfiction could be about Sonic trying to free his friends from Sonic.exe's dark influence. In this story, Sonic uses his speed and wits to outsmart Sonic.exe in a series of challenges.
One possible plotline could be that Sonic fails to save Chris from a dangerous situation in time, causing Chris to break down crying. For example, if a powerful enemy captures Chris and Sonic has to fight through many obstacles to reach him. Another could be that Chris feels left out as Sonic spends more time with his other friends, leading to his crying and Sonic having to make it up to him. Maybe Sonic gets so caught up in his adventures that he forgets an important event for Chris, like his birthday.
Betrayal is also a common theme. If someone they trust betrays them, Sonic and Tails would be deeply hurt and likely to cry. This shows their vulnerability. Also, the theme of feeling powerless. When faced with a force too strong for them to handle, like a powerful new enemy, they might cry in frustration and fear. It adds depth to their characters as they are not always the invincible heroes.
There's a fanfiction called 'Shattered Dreams' where Sonic is put in a situation that makes him break down and Tails has to be strong for both of them, but he also has his own moments of crying. It's really good at showing their friendship through tough times. Also, 'The Weeping Hedgehog and Fox' is a story that delves into their past traumas and how it surfaces in a moment of crisis, causing them to cry and lean on each other.
One interesting Sonic Babies fanfiction could be about their adventures in a new, colorful world filled with friendly creatures. They might discover new powers and have to use them to protect their little baby - like world.
There are many. Some fanfictions might focus on Sonic's new adventures in the classic zones, like exploring hidden areas in Green Hill Zone. Others could be about the relationships between Sonic and his friends, such as Tails and Knuckles, in a more in - depth way than the original games.
A great Sonic the Werehog fanfiction could explore his origin in more depth. What if there were secrets about how he became the werehog that not even Sonic himself knew? It could involve ancient prophecies and dark magic that are slowly revealed throughout the story, making for a very engaging read.
There are fanfictions where Sonic and Tails time - travel. For example, they might go back to the early days of Mobius and meet their predecessors. This can lead to all sorts of interesting scenarios as they try to avoid changing the future while still learning from the past.
One idea could be a Sonic fanfiction where Sonic and his friends have to team up with their old enemies to face a new, greater threat from another dimension. This would bring a lot of interesting character dynamics as they have to put aside their past differences.
There could be a fanfiction where Sonic and Cream are part of a team competing in a grand tournament. Sonic uses his speed to quickly reach the goals, while Cream provides support and strategic thinking. Their friendship grows stronger as they face tough opponents together.