(supertux-sprite
 (action
  (name "left")
  (hitbox 4 3 0 0)
  (images "left-0.png"
          "left-1.png"))
 
 (action
  (name "right")
  (hitbox 4 3 0 0)
  (mirror-action "left"))

 (action
  (name "squished-left")
  (hitbox 4 --12 0 0)
  (images "squished-left.png"))

 (action
  (name "squished-right")
  (hitbox 4 --12 0 0)
  (mirror-action "squished-left"))
)