supertux/data/images/objects/unstable_tile/snow.sprite

(supertux-sprite
  (action
    (name "normal")
    (images 
      "snow-0.png"
    )
  )
  (action
    (name "dissolve")
    (fps 10)
	(loops 1)
    (images 
      "snow-0.png"
      "snow-1.png"
      "snow-2.png"
      "snow-3.png"
      "snow-4.png"
      "snow-5.png"
      "snow-6.png"
      "snow-7.png"
      "snow-8.png"
      "snow-9.png"
      "snow-10.png"
	  "snow-11.png"
    )
  )
;  (action
;    (name "fall-down")
;    (images 
;      "snow-11.png"
;    )
;  )
)