Incredible! So far, a lot of games don't have "synergy" my game included (we wanted to but it was out of scope) so at first I thought, "oh another play together game but really I could play each side separately" so when I died I was like.. meh it was too hard to kill the big ships... Then I tried again and realized (why does he give me the shadow ship? Can it shoot? Can they swap positions?) So I tried lining them up and then BAM Power shots.
You really captured the stronger together in the way you did your game imo. Even if you can play this together with a friend the synnergy really sells the them! Aces!
Oh also I like the music and sfx choices, but I am impressed with Innovation and game design :)
Oh also I like the artistic choice of red blue and purple for color schemes!