Giratina, Dialga, Palkia, Mespirit, Azlef, and Uxie
Here's how to get them all without cheating:
1st way: Go into the Distortion World with Cynthia, Cyrus, and Giratina and solve the puzzle, catch/defeat Giratina. Then Dialga and can be found in Spear Pillar. Mespirit will be found in Verity Cavern. Azlef will be found in Valor Cavern. Uxie will be found in Acuity Cavern.
2nd way: Go to Turnback Cave and find three pillars. Talk to them. Once you find the third pillar, Go through any door and Giratina will be in that room. After defeat/catch him, Dialga/Palkia will be found in Spear Pillar. Mespirit will be found in Verity Cavern. Uxie will be found in Acuity Cavern. Azlef will be found in Valor Cavern.
If you need more help, we've got more Pokemon Platinum cheats and also check out all of the answers for this game
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