Heyo~
I really dug the music and the vibe of the game. I couldn't help but smile at the retro sound effects.
This was mentioned before, but I really would have loved if the player received some sort of reward for moving rather than staying still. Maybe some sort of collectable, or like a powerup, or something along those lines would have made a big difference to the experience.
Once I got the hang of it I found the movement to be pretty satisfying. Things definitely got chaotic pretty fast and I had a lot of fun playing your game. Great job!