I like it! It’s fun and works well with the theme.
I think you could have also made the paddle shrink without the need for a health system or the hearts could be controlled by the ball as well. I also found it a little to hard early game with the lasers and everything and I think you could have spiced the visuals up a bit more. Also I don’t think there was a real need for a main menu as it was just a start button, and the game doesn’t auto-start when you load up the page (for me at least).