I fixed some stuff to make a version that works with keyboard + mouse over the past few day or so
Same as the hosted copy- extract into any directory and run the .exe with the unity icon to play.
AD - Strafe Left/Right
WX - Strafe Up/Down
Space - Accelerate
S - Reverse
Left Click - Fire laser
Right Click - Fire rockets
E - Eat enemy (if they are dead)
ESC - Return to menu
Controller keys are rebindable in the unity launcher.