Hey Guys, I was playing my Soul Silver today, and i was cleaning up my box, when i came across one of my Vaporeon, it had an undesirable nature and it had bad IV's so i proceeded to release it. But it came back?!?!? Can someone explain?
The reason is most likely because it knows an HM move. take it to the Move Deleter.
If the HM move will not be erased, it's because it's the only Pokemon that knows that move.
Happy Pokemon tend to want to stay with you, be worried and care about your game characters well being.
The amount of times I have had Bibarel that love me...
It'll be because it's probably too happy. Even though a Pokemon is boxed it doesn't necessarily mean it doesn't have a lot of happiness. This all depends if you've trained it before though. Go take it to a happiness rater.