차를 추락시키고 차를 업그레이드 할 가능성이 적은 색상을 통과하십시오.
You have to choose the color that you pass from in the time frame of a few seconds. Although green is the best choice here in the Medium level stage you should also take the numbers into consideration. The crashing rats will drop as much as you upgrade your car and better cars will be capable of reaching higher effectiveness. 3rd level will be coming soon with more rewarding but more difficult gameplay so stay tuned. Enjoy!