Arceus and Drakrai

The name of the event item that you need in order for you to capture the legendary Pokemon Arceus, is called the Azure Flute, and there are only two ways that you can get the flute. The first way that you can obtain the Azure Flute is by cheating and using the cheating device called the Action Replay DS. After you buy the cheating device you can get a cheat code to use with the Action Replay device and that cheat code will give you the Azure Flute. After you use the code you can get the Azure Flute and then go get Arceus who is waiting for you on the Spear Pillar. Another way to get the Azure Flute is go to a Nintendo Event and get the flute via Nintendo WI-FI. That is the same way you can get the Darkrai item. By using a cheat code from the Action Replay. Hope this helps.

You cannot get the flute without going to a nintendo event and for darkrai you have to get a membership which is also at a nintendo event to get to darkrai's island you go to canalave city and there is a door that is locked after you get the membership from a nintendo event the door will be open and a guy takes you to a bed and you fall asleep and wake up on a island he is there and for Arceus he is at spear pillar after you get the flute you stand on the square at spear pillar it will say the flute is making a weird noise and will ask you if you want to blow into it and hit yes P.S these items are also obtainable by getting an Action Replay

You have to go to nintendo events or use an Action Replay to get the Azure Flute for Arceus and the Membership Pass for Darkrai.

Goo goo g'joob

The Pokemon Event over the wifi. Use or buy the Action Replay DS. Here are the cheats for the events to put in the Action Replay DS. These codes for Diamond and Pearl

Event Codes

Arceus Event (Azure Flute)
94000130 fcff0000
B21c4d28 00000000
B0000004 00000000
0000aa3c edb88320
2000aa68 0000000a
D2000000 00000000

Darkrai (Member's Pass)
94000130 fcff0000
B21c4d28 00000000
B0000004 00000000
0000aa3c edb88320
2000aa68 00000008
D2000000 00000000

Shaymin Event (Oak's Letter)
94000130 fcff0000
B21c4d28 00000000
B0000004 00000000
0000aa3c edb88320
2000aa68 00000009
D2000000 00000000

Manaphy Event (Manaphy Egg)
94000130 fcff0000
B21c4d28 00000000
B0000004 00000000
0000aa3c edb88320
2000aa68 00000007
D2000000 00000000

I know how to get Shaymin and Darkrai easily, just listen up.

Before I start, Here's a cheat that allows you to turn any pokeball into a masterball when you theow it, after you write it down into your Action Replay and you start to play your game, you still have to go back on your Action Replay to turn it on.

Here It Is:
9223C1F4 00002801
1223C1FA 00004280
D2000000 00000000

Shaymin
1.First, fly to the Pokemon League,ok.
2.When you are in front of the building, save.
3.Turn off your DS after you save
4.Put your Action Replay in you DS
5.Turn on you DS, wait till it tells you to put diamond/ pearl in you DS (don't turn off the DS)
6.Click the green button
7.scroll down your options to the bottom until you reach the option "GO ANYWHERE - THROUGH ANYTHING:"
8.Press A
9.Scroll until you see the option "Run Anywhere", click it
10.look onto the bottom screen and click START
11.It will start to play the stop and tell you to insert your Action Replay (don't turn off your DS)
12.Insert yuor action Replay
13.Wait for it to stop saving changes
14.insert you game Diamond/ pearl into the DS (don't turn off your DS)
15.The game will start and you can walk through anything, on anything
16.go to the right and go down the Mountain and go up until you're on the other side
17.Keep going up until you see water
18.Save then turn on your "all pokeballs turn into Masterballs Cheat"
19.You will see a Shaymin just sitting there, don't stop
20.Just keep going foward past the Shaymin for about a minute or two
21.eventually, you will see a big patch of flowers and the real Shaymin will be there at lvl. 30
22.the other was just a decoy

Darkrai
1.fly to Canalave City
2.Take the boat there to Fullmoon island where you find Cresselia
3.Go to the side of the island without going into the forest where you found Cresselia
4.Turn on your run through walls Cheat
5.When you are by the side, Save then follow steps 3 - 15
6.Go down the side of the Island until your on water
7.Keep Going right on top of the water
8.It will eventually say Mystery Zone but don't Mind it
9.Keep Going and you Will eventually reach NewMoon Island where you find Darkrai
10.Save then turn on your "all pokeballs turn into Masterballs Cheat"
11.Go into the forest and there would be Darkrai at lvl. 40

I Still don't know how to find Arceus though.