Even Doraemon like to play some times. We might see him as the caring guardian of Nobita, but Doraemon is as tough as can be since he enjoys a hobby that most people would stay away from. There are times, that Doraemon takes part of the Tokro Racing.
Drive your car as fast as you can and pick some burgers, and money while driving your car. Things won't be easy, but that the hard truth. In life, you need to work hard to make a living and the same thing applies to racing. Your car will immediately crash if you are not careful enough.