This looks so cool! If there was a way to make the controls a little more efficient, like maybe mouse controls like suggest, or removing a few actions so that less keys need to be kept track of? I definitely think you should keep going with this and it'd be really awesome, the colors and music are fun! Definitely better than some of the others.
 "circuit_strike.remix_hd"){kind=icon}
 "Psypothic"){kind=icon}
 "pulse"){kind=icon}
 "Muse"){kind=icon}