It's a nice first game with good art :)
I would like to hold A/D to move faster, and there doesn't seem to be a way of complete each level 100%. But other than that, nice game!
Actually, that's part of the puzzle in the game; you need to think about whether you should break a few of these blocks, even though you shouldn't, in order to break the blocks behind them to achieve the highest score possible., but I can't think of any design that would allow players to truly optimize that gameplay (im using ai translate btw)