I think this needs a little something more. Clicking blocks to break them is an alright mechanic, but there needs to be more meaning behind which blocks you break, when, and why. It ends up being really click heavy in a way that I could see tiring out wrists/fingers easily. I would recommend changing the clicks to break to like 1/2/3 or 2/3/4 instead of 2/4/6. The levels repeated, which made going through the whole 2-3minute timer felt a lot longer than it was, too.
Good job finishing and submitting though! I liked the music and making all your own assets is an achievement, too! Well done!