You dont need it to complete the sinnoh dex. You need it for the national dex. I have shaymin and Arceus but i could care less because mine arnt movie mode so they cant get different forms.
I think that shaymin's forms are exclusive to platinum as they require a giveaway from a Nintendo event. If it wasnt built into platinum pearl/diamond then you wont be able to change its form. It would be like trying to trade across Pokemon to lower generation games which don't support that Pokemon. If the method for doing it in platinum doesnt work then you simply cant do it.
i have no clue
only 1
All Pokemon list require a trade or you to import via Pal Park. As none are wild in Pokemon Diamond.
No, each game version is unique and require differnet codes. if you need codes for Pokemon Diamond just Google it.
Well...you can't. The event is over so you JUST CAN'T. If you HACK (not cheat) on the PC that is illegally obtaining Pokemon. Don't try it. Or get Pokemon ranger and import it. Oh, and to get darkrai, you can tweak. Here's a link that'll show you how to tweak and go through stuff (IT DOES NOT REQUIRE CHEATING OR ACTION REPLAY) http://www.youtube.com/watch?v=YRKPj4tcybE
Thats because you have to require the national dex to trade over certain pokemon.
None reqire codes - but DARKRAI and SHAYMIN are obtainable in this way - DARKRAI & SHAYMIN - get the walk anywhere cheat. DARKRAI - go to CRESSELIA's island. then run accross the water to New Moon Island (in > direction). go into the cave and you will enter Nightmare Spring. there is a black shape there. press A on it. DARKRAI is at level 40. SHAYMIN - go to Pokemon league. walk out in > direction, go to rt. 224. run behind the white fossil rock. the first SHAYMIN is a decoy. run behind it, all the way to the top of the map (it is longer than route 223 - it helps if you use your bike). there will be a level 30 SHAYMIN.
If the boulders are smooth then you need to get one of your Pokemon to learn strength to move it and if the boulder is rough then you need to get your Pokemon to learn rock smash ( both of these moves require HMs to be learnt)
to get the mystery gift go to the jublife tv station. then go to the 3rd floor and talk to the guy. when he asks you what your opinion is on the tv or something tell him "EVERYONE HAPPY" then he'll ask you again then say "WIFI CONNECTION" he'll then say something about the mystery gift. then save your gave and turn it off. then on the pokemon diamond welcome screen it will say mystery gift. *you can still play pokemon diamond when you have this and it does not require an action replay* Thanks but do you need to have someone with the same game as you and the same type of ds to give it to you? By the way, what is the mystery gift? go to a toys r us store and buy the mystery gift there on a day if a mystery event. i think march 5-8th there is a shaymin or something.
They are Giratina, Dialga, Palkia, Darkrai, Arceus, Cresselia, Uxie, Azelf, Mesprit, Heatran, Moltres, Articuno, Zapdos, Shaymin, Regigigas, Regice, Regirock, Registeel and Manaphy (Recieve egg from Pokemon Ranger). Some of them require special events.
All Pokemon evolve at different levels. However some require items to be held when evolving, evolution stones to be used or a certain happiness level to be reached.