Really fun and difficult! I really liked the chemistry and atom theme. Dropping the atom in and successfully hitting the core was very satisfying. Great job on making the shots very accurate made it feel like the only reason you weren't progressing was because of your skills and not the game being unfair.
But I did feel that some levels were too difficult and once you lose your focus on 1 level it kinda just spirals down until you can barely keep up.
Good job!