Really cool puzzle game!
I love the sound effects. Working with the ball of light is really cool idea.
The music doesnt get annoying! yay! that seems to be a problem with other puzzle games, but this music has enough going on to keep it interresting even through the 20th loop.
The puzzles are hard, keeps me thinking. I had to use the walkthrough on a couple of them.
How about some medals? that would be great!