+ if random.randint(0, 10) < 2:
+ sound.play_sound("mouth_pop_2a.ogg")
+
+ if self._age in (10, 20):
+ # We grow in size
+ refresh = True
+ self._img = None # invalidate cached image
+
+ if self._age > 20 and random.randint(0, 500) < 1:
+ # Maybe we grow an eyeball
+ self.has_eyeball = True