supertux/data/images/objects/weak_block/meltbox.sprite

(supertux-sprite
  (action
    (name "normal")
    (images 
      "meltbox-0.png"
    )
  )
  (action
    (name "burning")
	(fps 16)
	(loops 1)
    (images 
      "meltbox-1.png"
	  "meltbox-2.png"
	  "meltbox-3.png"
	  "meltbox-4.png"
	  "meltbox-5.png"
    )
  )
  (action
    (name "disintegrating")
	(fps 16)
	(loops 1)
    (images 
      "meltbox-6.png"
      "meltbox-7.png"
      "meltbox-8.png"
      "meltbox-9.png"
      "meltbox-10.png"
      "meltbox-11.png"
    )
  )
)