Instructions are in the game. Except for Super Sonic controls. left arrow key: move back. right arrow key: move forward. h: stop running. s: become Super Sonic. To become a regular Sonic, click the sprite. to fly: up arrow key. to get to Space City, click on the stage. By the way, the "username" block is so that you feel a sense of actually being in the game; as if you are a character in it too. BTW, I just made a HUGE update with this game so it's a lot better now.
I improvised. I originally wanted to do a whole game, but I decided I'm not good enough a programmer for that. To get started, press 1. Then, Sonic and Dr. Robotnik will talk to you. By the way, make sure you press z at the thumbnail, as it starts the game. After you talk with Sonic press r. It cues a soundtrack. Then, for the boss press u. And for a good ending, press p. For bad, it's an easter egg. All characters such as Sonic the HedgehogTM belong to their respective owner(s) SEGATM 1991. Ben87878TM 2022. P.S., make sure you press "Z" after playing, or another's game may be ruined. Soundtracks also belong to SEGATM.