Really simple but fun game! This reminds me a lot of a game called Factory Balls I used to play on Cool Math Games at the school computer lab sometimes, so lots of nostalgia for me. Very unique interpretation of the theme and the music is great and fits the game well. The level of difficulty was also pretty good. My main suggestion is to make it feel more responsive when clicking/hovering over the interactable stuff such as a little animation or something. Other than that I played through all the levels and really enjoyed your game!