Awesome art and great movement. This felt awesome to control. As a multiplayer battle, I think maybe the disc movement is too fast and hectic. Maybe limit the disc so that after say, three or four bounces it automatically returns to the player, or is destroyed ... maybe there is a reload disc zone where you have to go to get another one so that way there's some added tension to gameplay. Maybe you can even catch your opponents disc with really precise timing.
I like this a lot and would love to see you expand it. Great entry.