I absolutely love the art style you've used here - it's gorgeous and it adds such character to the game! The audio is really great too, gave me pure retro energy.
I struggled with the controls initially, but once I got used to them I made a lot more progress and really enjoyed myself. Had a few crashes when there were multiple visual effects on screen, but I think that's something you've already noted below.
Really great game though, had a blast playing!