i cant remember but i thought for sure the dude terrorizing the red headed chick had a shadow mon and after i beat him he said at least i still have my cacnea so ha, but the cacnea wasnt a shadow mon that i could catch. so i checked on the location guide and yea it said cacnea is a shadow pokemon but when i went back on a previous save to try to catch the cacnea the pokeball was deflected. so i believe this is a bug