data/images/creatures/tux_big/bigtux-star.sprite

   1 (supertux-sprite
   2        (action
   3          (x-offset 8)
   4          (y-offset 8)
   5          (images "extra-star-0.png"
   6                  "extra-star-1.png"
   7                  "extra-star-2.png")))