This game here is what I call a game with a heart! I mean look at it, you've manage to make a simple tutorial instruction 2 lovable characters. And pressing the button actually shows an animation of them turning the gear! What's not to love about it! hahaha!
Controls are easy to grasp but would make it feel even smoother if the rotations are faster. Actually you could even make it a gameplay mechanic where you could upgrade "Q" & "E" by maybe giving food or something which will make them more energetic thus spin it faster hahahah. One way you could implement this is maybe different color combo gives different bonus, green combo gives food, red increase more boom gauge, gold add more points, blue add more time, etc etc.
Overall, this is a really good take on the traditional match-three puzzle style game, with a little more polishing it could really work as a fun mini game or mobile game! Keep up the good work!