It appeals because it allows fans to explore different timelines and universes. We can see how the classic and modern Sonic worlds would collide or interact. For example, in some fanfics, the different power - ups and gameplay mechanics from both eras are incorporated into the story. It also gives a chance to expand on the characters' relationships. Maybe in one fanfic, classic Sonic is in awe of the modern world and modern Sonic has to show him around. There are so many possibilities that make these fanfics appealing.
There's also 'The Meeting of Eras' which is a really cool 'classic sonic and modern sonic fanfic'. In this one, Sonic from the classic era accidentally gets transported to the modern Sonic's world. It's full of action and adventure as they try to figure out how to get classic Sonic back home while also dealing with the villains in the modern world. It really plays on the nostalgia of the classic Sonic games while also incorporating the more advanced elements of the modern ones.
Well, they could have an epic race. Modern Sonic is all about speed and his cool modern moves, while Classic Sonic has his own charm. They might start competing, with each trying to outdo the other in different terrains. It would be a showdown of different Sonic eras.
Classic Sonic and Modern Sonic are the stars, of course. However, Knuckles can also be a very popular character in these fanfictions. His role as the guardian of the Master Emerald in the classic world and his continued importance in the modern Sonic universe make him an interesting addition. He can be the one who initially doubts the partnership between the two Sonics but then comes around. And Amy Rose is another character that often appears. Her feelings for Sonic, both Classic and Modern, can add a touch of romance or at least some emotional depth to the story.
The contrast between the two Sonics. Classic Sonic is more innocent and simple, while modern Sonic is more complex and has a lot of development. When they are put together in a fanfiction, it creates interesting interactions. For example, modern Sonic might be shocked at how carefree classic Sonic is.
Well, 'Sonic's Dimensional Rendezvous' is a cool fanfiction in this category. It shows how modern Sonic's speed and classic Sonic's more carefree attitude work in harmony. The story often has them racing against each other as a friendly competition while also having to deal with villains from different dimensions. There's also 'Classic - Modern: Sonic Bond' where they learn from each other's strengths and grow as characters.
In some fanfictions, they might explore the differences in their personalities. For example, Classic Sonic's more simplistic and straightforward approach contrasted with Modern Sonic's more complex and sometimes cocky attitude. They could start off not getting along due to these differences but then learn to work together. Maybe there's a story where they are both trapped in a strange dimension and have to rely on each other's skills. Classic Sonic's spin - dash and ability to handle more 2D - like terrains, while Modern Sonic can use his homing attack and boost in the more complex 3D areas of the dimension.
Classic Sonic could be the most interesting. He represents the roots of Sonic. When he meets Modern Sonic, he might be curious about all the newfangled things like Sonic's modern shoes or his new power - ups. His reactions to the modern elements would add a lot of charm to the story.
The main characters are obviously Sonic, Tails and the modern brother. Sonic is known for his super speed and heroic nature. Tails is his trusty sidekick with his mechanical skills and intelligence. The modern brother is a new addition who likely brings a different dynamic to their group, perhaps with a more contemporary view on things.
In a Metal Sonic x Sonic Fanfic, the action and adventure aspects can be really exciting. Writers may create new challenges for Sonic and Metal Sonic to face together or against each other. For example, they could be forced to team up to defeat a greater evil that threatens their world. This kind of fanfic also gives a chance to delve into the emotions of the characters. Metal Sonic, although a machine, might show signs of evolving emotions or at least a form of artificial intelligence - based loyalty or rivalry towards Sonic.