Dissolving floor

In this game you need to move the rectangle so you can collect the orange blocks, using the arrow keys.   Once you do, you'll move onto the next level (12 in all). Things have also been updated so that the rectangle no longer rotates.  

Let me know what you think of the updated look and game style.

Note: I've fixed the issue of the first level being invisible and made it so that you need to press the spacebar to continue reading what's written in the first/tutorial level.