this is pretty good, i think that this fangame has so much potential but i have some gripes.
first, sonic movement feels ok but when he use the sword it feels a bit slow in my opinion and it feels a little tight but i think this can improve in next update. Second, combat feels a bit confusing because seems like it's just click without knowing what is sonic going to do, maybe using mouse movement while holding the left click to simulate the movement of the Wiimote will work. And third, Silver's fight is good and a good idea too, but i think the QTE should just give you a LITTLE more time to react.
I liked, and I will love if you finish this someday fixing some of the problems that are in comments, just keep going.