On this battlefield you're a ministering angel! You'll have to carry as many wounded rabbits to the hospital tent. The way there's full of dangers, because a battlefield is full of pitfalls of course and there are bombs flying around that you'll have to avoid. It might happen that the injured are too heavy to carry along during your jump: in those cases you can use an elevator. Will you manage to carry all the injured to a place of safety without being cut down in battle yourself?
Use the arrow keys or A and D to make the rabbit run. Press the spacebar to pick up or lay down the wounded and press E to pull levers. The controls will be clearly explained inside the game as well.