Apart from the technical stuff this is amazing. I'm all excited for the full version!
In the tutorial section the motion blur is just extreme for me. I'd appretiate the option to turn it off either way. It does enhance how the speed is communicated, but it ruins the amazing graphics.
And the controls are all over the place on the keyboard once you are supposed to do barrel rolls. I can pull off an A+Z+C combination with one hand awkwardly enough, but it's impossible to see the X key then. I'm sure this was a standard configuration, wasn't it?