-BD style butterflies always try to follow the right side of a wall
-or other elements. Touching them is deadly.
+Butterflies always try to follow the right side of a wall or other elements.
+Touching them is deadly.
+
+They will explode in 9 BD style diamonds if smashed by a rock or BD style
+diamond. If dynabombed, they will become one BD style diamond.
+Other explosions simply destroy them.