I don't think so. Usually, when something is called Project X, it implies a creative or hypothetical concept rather than a real-life occurrence. It could be part of a fictional narrative or a thought experiment.
It depends. Some elements of Project X might be based on real events or inspired by them, but it's likely a fictionalized account with added drama and creative elements.
Project X 1987 is not a true story. It's a made-up concept, likely developed to engage and captivate the audience through fictional elements and creative storytelling.
Hard to say for sure. Project X might have started with a kernel of truth but could have evolved into a mostly fictional story during the creative process.
Project X could be real or not. It might be a blend of real-life experiences and creative imagination. Without more specific information, it's hard to say for sure.
There could also be some new characters introduced in this fanfiction. Maybe a mysterious figure who has the power to control Dark Sonic or someone who has a connection to the origin of Dark Sonic. These new characters can bring fresh plot twists and new relationships to the story.
A common theme is adventure. Both Sonic X and Sonic Underground are about Sonic and his friends going on exciting adventures, and this is often carried over into the fanfiction. For example, they might be on a quest to find a powerful chaos emerald or save a new world from an evil villain.