WASD is easier for me because there is some mouse clicking involved and using the left hand for the arrow keys is a bit cumbersome. Load does nothing yet.

If by impossible you mean that it is looping over and over again, that's normal and intended because level three is the last level for now.

I purposely did the looping to avoid an exception. I moved the text because the boxes obstructed each other when there were several ones in the world at a time.