Great game! It isn't completely innovative, but not overdone, either. The idea is great and you could certainly expand it. I won't complain about the art either. You're a programmer, but you animated the guy walking pretty well. (The menu screen could use some cleaning-up, though.) The biggest issue with the game is a technical one. The blocks go further and further away from the mouse as you drag them if the screen moves. If that issue is resolved, I'm sure your game will be very successful. Keep up the great work!