Sonic Overture is an amazing demo of a Sonic fangame. I had really enjoyed playing it and attempting to get through the three acts of Sunrise Gate as fast as I can. I found the ost in the game to be enjoyable as well, and just recently, I noticed there were some extra frames of animation when Sonic runs at full speed or bounces up on a spring. It's because of this that I hope Sonic overture can one day be complete.