I have been going backwards and forwards in my head about this one. Because it is a cool concept, but in the context of the theme being "Return of the Arcade", I have been wondering how this would be controlled on an actual arcade machine? I've come to the conclusion that it could be done by having a joystick and a trackball, or two buttons and trackball. Although people tend to think of typical arcade control schemes when it comes to arcade titles of old, even during the arcade's heyday it was common to see games with unique controls.
I like the in-game visuals, the power-ups which rain down, and the variety of enemies, along with the challenge of making the sure player doesn't hit the walls. I am torn about the speed, as it did feel that levels were going on a little too long, but also when it came to certain sections the slow speed was certainly appreciated! With some balancing tweaks this has the potential to be a solid title.