What could be the plot of a 'jack meets sonic fanfiction'?

Well, it could be that Jack Frost is creating his icy landscapes when Sonic zooms by. Sonic is curious about this new, frosty world and Jack Frost is equally intrigued by Sonic's speed. They might start off a bit wary of each other but then realize they can team up. Maybe there's a common enemy that likes to disrupt both Sonic's green, vibrant world and Jack Frost's wintry domain. So they combine Sonic's speed and Jack Frost's ice powers to defeat this foe.

One possible plot could be that Sonic gets accidentally transported to the Marvel universe where the Avengers are based. At first, there's some confusion and mistrust. But as they face a common enemy, like a powerful interdimensional villain who wants to conquer both Sonic's world and the Avengers' world. Sonic and the Avengers have to combine their unique abilities. Sonic's super speed, agility and his friends' skills along with the Avengers' superpowers, high - tech weapons and combat experience. They learn from each other during the fight, and in the end, they become friends and Sonic might even get a chance to visit the Avengers again in future adventures.

In a 'naruto meets sonic fanfiction', it could be that there is a tournament where characters from different universes are invited to participate. Naruto and Sonic both enter. At first, they are rivals, but as they face tougher opponents in the tournament, they realize that they need to work together. They combine Sonic's speed and Naruto's strength and strategic thinking to win the tournament and in the process, they become friends and learn a lot about each other's worlds.

It might be that Sonic is drawn to the Goonies because of a strange energy or object that they've found. Since Sonic is often involved in protecting powerful items, he senses this and comes to check it out. The Goonies could initially be a bit wary of him, but as they see Sonic's good intentions, they team up. Together, they use Sonic's abilities and the Goonies' knowledge of their area to solve whatever mystery is surrounding the object or energy.

One possible plot could be that the characters from Sonic Underground get transported to the world of Sonic X. They then team up with Sonic and his friends in Sonic X to fight a common enemy like Dr. Eggman who has somehow become even more powerful by combining technologies from both universes. The different Sonic characters would have to learn to work together, sharing their unique abilities and skills.

One possible plot could be that Sonic accidentally enters the Skullgirls' universe while running at super - speed through a dimensional rift. He teams up with the Skullgirls characters to fight a common enemy that is threatening both of their worlds. For example, an evil scientist who wants to use the power of the Skull Heart and Sonic's chaos emeralds for world domination.

In this fanfiction, perhaps Sonic Underground is facing a threat that they can't handle alone. Tails, being a friend of Sonic from another part of their world, comes to their aid. They discover that an ancient evil has been awakened. The story could involve Tails using his inventions to analyze the ancient evil's weaknesses while Sonic and his siblings use their unique abilities to keep the evil at bay. As they progress, they form a strong bond and learn from each other's ways of doing things.

One possible plot could be that Jack Frost, being the spirit of winter himself, is intrigued by Elsa's ice powers. They could start by having a friendly competition to see who can create the most magnificent ice sculptures. Their powers combined might accidentally create a new, magical ice realm that they then have to explore and protect together from an approaching threat, like a dark sorcerer who wants to steal their ice magic.

Yes, there are quite a few out there. You can check some popular fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'jack meets sonic' on their platforms and you'll likely find a variety of stories with different takes on this crossover.

One possible plot could be Sonic accidentally running into the Pokemon world while chasing Dr. Eggman through a strange portal. He teams up with Pikachu to stop Eggman from stealing all the Pokeballs in a Pokemon center. Sonic's speed and Pikachu's electric attacks would make a great combo against Eggman's robots.