I have a question about dreamworld and butterfree in particular. If he is only attainable in dream world, and has tinted lens as a dreamworld ability, how do you acquire a compound eyes butterfree in Pokemon White? And if breeding is the answer, how do you know if the caterpie will give it.
Pokemon will only inherit the Dream World ability from a female parent at a 50% chance, so if you breed a male Butterfree with a Ditto, you can be assured it'll have Compound Eyes, or you can hatch a Caterpie that has the standard Suction Cups ability instead of the Dream World only Run Away ability (As the latter will become Tinted Lens when it evolves into Butterfree).