Sonic Adventure (SEGA Dreamcast) Playthrough - Sonic's Story: Part 6

After leaving Twinkle Park, Sonic goes to a strip of grass by the train station to pick up a business card. The card opens up a shutter door by Twinkle Park and allows Sonic to take an elevator to the rooftops of Station Square. Sonic then has to go "up and down and all around" Speed Highway to release more animals. After he finishes his duty at Speed Highway, he goes back to Station Square to find Amy; turns out she got kidnapped by the robot who had been stalking her for so long. Sonic immediately catches a train to the Mystic Ruins in order to save Amy, but she gets abducted by the Egg Carrier when he arrives for her rescue. Since she got captured, Sonic goes exploring along the cliffs of the Mystic Ruins and finds the Ancient Light. After defeating a monkeybot guard in front of the gate to Red Mountain, he scales the mountains and runs through the volcanoes in the mountains in order to release yet more animals. After rescuing more animals, Tails conveniently flies by in perfect condition after the crash to give Sonic a lift and chase after the Egg Carrier.