Dora might have all the friends in this world, but it doesn't mean that he won't need a job to survive. Her friends will always e there, but you need to remember that they can't work for you. You need to work on your own to earn money and buy all the things that you need. Dora find a job as a truck driver and she needs to deliver the package to its destination or she won't earn her salary at all. That is the trend right now as you need to do something for someone to earn money the honest way.
In this game, you would be driving Dora's truck as fast as you can. Collect some stars along the way. Make sure to be on the look out for some of Dora's friends. Stop whenever an animal is on the driveway because you need to give them the package they want. Each animal would have a different package. You need to do this things as fast as you can since the bonus that you might receive dwindles every time. You need to deliver all of the package to the animals waiting for the package to pass each level. The game gets more difficult as you make some progress.