You're the Zoo's carrier, and you have to pick up and carry the food for the animals without losing them on the way, and take them to the destination before the time's up. Use the arrows to drive your truck.
Manage to bring those cars with bombs to the special teams, using the right and left arrows of the keyboard to keep the balance, the down arrow to brake, and the spacebar to jump. If you do pirouettes, you win more time...