I was thinking it would be nice to take a break from games that have medals. I only played this because it had gamezhero as the sponsor. That seemed to work out okay, because I ended up getting the medal I needed. I was a bit confused on what you meant by "stars" when you were collecting discs. It turns out those were indeed stars. I really liked the atmosphere.
Of course, it reminded me of the Tron movie. I did not see the original, but I did see the sequel, which was okay. It's interesting how there are no enemies in this. All of your problems are created with your own environment. It's a fairly unique game.