I don't mind if the block moves very slow but the controls need to be more responsive.  Sometimes the player goes opposite the direction I want it to go and it kind of ruins the game. One more thing about the controls, is the WASD keys or arrow keys I use to control the player? if it is, it doesn't seem to work. 

By the way, I really like the name of your game and the idea, it has a lot of potential.