Go to Mos Eisley and choose to be on the villan side. Choose either Jango Fett or Boba Fett and go to the tip of the destroyed ship. Use jet pack and continue to fly forward until fuel is gone. You should be on the other side of the wall. Continue forward until you reach the end of the city. You will be able to go thru the buildings and the wall. If you continue forward you will die.