Fun and Addictive
It is a great concept, and it was executed wonderfully. The presentation is superb. Everything looks slick and professional. The levels get harder as you progress, and sometimes a little frustrating. It also felt just the right length. 20 levels wasn't too short, and it didn't wear out its welcome, by being too long.
The fun facts were interesting as well, and a nice touch, although they did start repeating rather early on. Yes, as a matter of fact I did know that the world's largest ball of twine weighs 17,500 pounds. You already told me 15 times.
The music fit with the theme of the game very well, although you could have had more music options. The gameplay was very smooth and I love being able to control all 4 traffic lights at an intersection.
Graphics: 8/10
Gameplay: 9/10
Sound: 8/10
Presentation: 10/10
Replay Value: 6/10
Overall: 9/10