The Block Puzzle Apartment

This game is a remake of the classic block puzzle game, with some special mechanics. You'll need to build floors for an apartment, and the number of floors is your score. Each floor needs to be at least 4 lines of blocks, and when you complete a floor, a new floor will be created on top of it and you can start building the next floor. Keep in mind there is a window-blocks group with 2 rows high, which can't be separated in the middle. It means that you'll have to build up another row if the previous rows are good enough to construct a floor but there is a window on the top row that preventing it from being split. This is my first android game. If you find any bug or have any suggestion, please let me know in the comment and I'll gladly take those feedbacks.