Thanks! Ya, I was going to add a bit more but reduced it to ensure I could finish it without bugs within the timeframe.
I had thought about cars coming from the other direction but I wanted to keep correct traffic. I could create a 3rd lane that is the opposite direction but that would only be 1 lane. To combat the just sit at the edge of the screen to collect, I was going to add other items that would be negative points as well as pedestrians crossing the street you shouldn't hit.
Also, the game has 3 modes. Easy, Medium and Hard. The default is Easy and is meant to be very easy to beat the game.