I'd be a bit helpful to maybe have some player input feedback on holding the spacebar down? Just so I know the game is registering the input. Pretty visuals! Jivin' music. Great job!
Certainly, I totally agree. That would have been the very next thing I implemented, but ran short on time. I had wanted a progress bar that fills and empties based on how long the spacebar is held down with a capped max, but as of now it is uncapped.