In this 'sonic x planet of misfortune fanfiction', Sonic could be separated from his friends upon arriving at the planet. He then has to endure a series of misfortunes all by himself. But as he overcomes each obstacle, he becomes stronger. Eventually, he reunites with his friends and they all find a way to leave the planet.
Perhaps a dark sorcerer who has cursed the planet. The sorcerer sees Sonic and his friends as a threat to his rule over the planet and tries to stop them from leaving or finding a solution to the planet's problems.
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 an ancient evil threatens both the Sonic X universe and the Sonic Boom universe simultaneously. Sonic from Sonic X and Sonic from Sonic Boom have to team up, along with their respective friends. They could start by accidentally crossing into each other's worlds through some sort of interdimensional rift. At first, they might be a bit confused and even a little competitive, but as they realize the scale of the threat, they combine their unique skills. Sonic X's Sonic is more used to high - tech environments and has different power - ups, while Sonic Boom's Sonic is more in tune with his natural island surroundings. Together, they could battle the evil and in the process, learn a lot from each other and their friends, ultimately saving both universes.
The story could revolve around how the other characters in Sonic's world react to Chris's death. Tails might try to comfort Sonic while also being deeply affected himself. Knuckles could be more stoic on the outside but also feel the impact. And the story might show how they all come together to remember Chris and keep his spirit alive in their world.
A possible plot could be that a powerful villain creates a device that sucks Sonic from his world into Wonder Girl's. Sonic is disoriented at first but quickly realizes he needs to find a way back. Wonder Girl discovers him and at first mistakes him for a threat. But when they both notice the strange things happening around them, like the sudden appearance of dark energy blasts, they figure out it's the work of the same villain. They then join forces, with Sonic using his speed to scout and Wonder Girl using her combat abilities to fight. Eventually, they manage to defeat the villain and Sonic finds his way back home, but not before they promise to be friends and help each other if such a situation arises again.
One possible plot could be that Sonic accidentally gets transported to the Arthurian era where he meets Sir Lancelot. Lancelot is initially suspicious of this strange, fast - moving creature but soon realizes Sonic's good heart. They then team up to fight some common enemy that threatens both Sonic's world and Camelot, like an evil wizard who wants to steal the Chaos Emeralds and the Holy Grail.
Perhaps the fanfiction could center around a race. Sonic, of course, loves to race. Cream wants to prove herself as a fast runner too. Bokkun, seeing an opportunity for chaos, creates some obstacles during the race. But in the end, it leads to Cream and Sonic working together to overcome Bokkun's pranks and they all learn a valuable lesson about friendship and sportsmanship.
One possible plot could be that Sonic, with his super speed, accidentally enters a different dimension where he meets Lancelot. They initially clash due to their different natures but then gradually form an alliance to face a common enemy. And the 'lemon' aspect could be some kind of strange energy or fruit that has special powers in that dimension.
One possible plot could be that Sonic somehow gets transported to the world of King Arthur and meets Sir Lancelot. They could team up to fight a common enemy, like an evil wizard who is trying to take over both Sonic's world and Camelot. Sonic's speed could be a great asset in battles, while Sir Lancelot's combat skills and chivalry would also play an important role.
One possible plot could be Sonic, with his speed and adventurous spirit, going on a journey to spread the teachings of Jesus in a fictional world. Maybe he uses his speed to reach far - flung places and share the message of love and kindness that Jesus represents.