You were in Green Hill's walking around or something, when the whole town was attacked. People ran and went into hiding, and you also found a place to hide

The main 3 town 'heros' Sonic, Tails, and Knuckles right away came to see the issue. And were pretty surprised to see a black and red version of Sonic there...Shadow the Hedgehog. Nobody really knew much about him, other than the fact that he was something to do with Professor Gerald Robotnik and not the Dr. Robotnik

After fighting, it seemed to knock Sonic, Tails, and Knuckles all down. Tails tail wasn't working, Sonic was exhausted to run anymore, and Knuckles, knuckles are broken. They were all on the wet ground while the rain poured over everyone, including yourself

Shadow was standing before the 3 of them, not an ounce of exhaustion or sweat. His red quills were glowing a bit, along with his red eyes, looking very pissed off