Quick puzzles, and pretty fun
Just the right number of levels (30), and the difficulty progression is consistent. The music and sound effects were minimal, and I have to agree that this version of Music Box Dancer made me want to take a nap rather than work out a bunch of colorful puzzles. It was also too loud...so thank you for adding a mute option.
Incidentally, I disagree with the walkthrough on the final puzzle. In my opinion there's a better way to complete it that doesn't require quite as much random luck. The key is to remove a certain color of block in the right order, but here's the actual solution if anyone needs help:
(spoiler)
-- First, remove the small green block near the lower right corner to release the large red < block. Next, take out the small green block second from the left to release the small red > block. Now, (and this is the tricky part) remove the small green block on the far right, and the small red < block will bounce against the small green block. As the red block is bouncing backward, remove the small green block holding up the long vertical red piece, then quickly take out the final green block to keep the long red piece from slipping out and away from the other red blocks. Pop the red blocks, then finish up with the blue ones. --
(end spoiler)
I've tried this method a dozen times, and it worked 2/3 of the time. There's a chance that one or two of the small blue ^ blocks will float away either before of after you pop the red blocks, and that will probably require a reset if it happens. Trust me, it's not really as hard as it seems with the right timing...and at least a little bit of good luck. It's still easier than the solution shown in the walkthrough video.