This is a great submission, I had a lot of fun playing it! My only complaint would be that levels 1 & 8, (which introduce blue and green circles respectively), do a worse job at teaching the mechanics than levels 2 & 9. Level 1 can be beat by driving straight across, and I actually quit 8 thinking it was impossible, only to immediately learn how the green circle works on level 9. Also I noticed that it saves your level progress using PlayerPrefs, very nice touch there :)