The game feel is actually pretty good but I have some feedback for improvements:
- PC controls are very weird with mouse and detracts from the good feel
- Character was right at the centre and enemies from the top and bottom would be very near when they enter the screen so I had very less time to react. I would suggest the camera to move toward wherever the player is aiming (character does not need to be centered always) or just zoom out.
- Sound was a bit too loud by default so maybe adjusting the sound to 75% would be nice is my gut feel.
Maybe an interesting video for the type of game you made (I was just saw this yesterday):
