You can only do it through special Pokemon Events (eg. Movie releases or game retailer special events). You can also find someone who has a Shaymin and ask them to trade it to you.
its impossible without cheats
in a fossil
You Have to trade from Pokemon Diamond, Pearl, or Platinum.
im pretty sure you can't catch it without cheats, its liek shaymin or acreus
You cant catch lugia on diamond and pearl but at red or blue rescue team in the silver trench
It's commonly refered to Pokemon. In diamond, you can now catch all 493 Pokemon due to recent events.
No you can't catch deoxys by using cheats
what does that mean it means your mother. How do you get staraptor on Pokemon diamond without cheats is the proper way. Catch a Starly, level it up to evolve into Staravia, then level it up until it evolves into staraptor.
Without cheating? Sapphire, Emerald. With cheats? Most likely Pearl, Diamond.
You probably caught it at pal park. This means that you migrated it from ruby/sapphire/emerald version. There is no way to catch a mudkip without cheats in Pokemon diamond. I'm sorry to say that it is impossible to catch in Diamond without migration or cheats: This is the guy who found torchic (not in pal park). I found it licking honey off a tree.
In sapphire you cant catch it without events or cheats:-)
there is no such thing You can use an emulator. Unless you think that is a cheat, Happy playing!