After a shocking loss against the Eggman Empire, hope fades from the world as rumors of Sonic's failure travels across the planet. The Freedom Fighters rally together, determined not to let Eggman gain control of the world. But without knowing what they're really up against, they must fight the dangers blindly just to keep their enemy at bay. Can Sonic, Mega Man, and the Freedom Fighters take back the world they have fought so hard to protect, or will their world finally fall into the clutches of the nefarious Dr. Eggman? (There's no need to read the previous stories before this. There will only be small references to it that don't really impact the story.)

Sonic is somehow pulled into the world of Mega Man, and he doesn't know which side to pick until he and Mega Man are captured by the infamous 'Dr. Wily', forced to join sides with the robot kid. They join together to try and stop a nefarious plot of the evil doctor, but will Sonic be able to help his friend, or will this be their final battle?

After going through a portal in Mobius to catch Dr. Eggman, Sonic gets transported to Jump City, where the Teen Titans live on Earth. After getting help from Robin, Starfire, Cyborg, Beast Boy, and Raven, they come across the rest of Sonic's friends and a terrible surprise. The long lost Slade has teamed up with enemies of Sonic, making a team that could be invincible. Will Sonic and the Teen Titans be able to stop Slade and his allies from taking over the world?

Sonic and Mega Man are meeting again. But this time, it's far more deadly than either Sonic or Mega Man could have imagined. Everything robotic is turning evil, due to one mastermind. A single virus is spreading throughout both worlds, helping Dr. Wily in his plots to take over the world. As Sonic and Mega Man find each other again, will it be a happy meeting, or will every single robot, including one of the heroes, fight to the death?

Sonic got sucked into the world of Dragonball Z after Goku's family helped Sonic get nurse back to health he went to search the ChaosEmeralds with the help of his new friends and meet his old friends on the way will they get to go home or are they stuck on planet Earth?