Where is Darkrai in Pokemon explorers of darkness?

Answer 1

WARNING: SPOILERS-

He is at Dark Crater, but you don't get to go there straightaway. You have to beat the main game and do the Post-story, then your last Post-Story mission is to defeat Darkrai, who first appears in a dream talking about the distortion of space. A few days later, Azurill is trapped in a nightmare and you have to find Drowzee at the top of Mt.Travail (19 floors), and he will send you into Azurill's Nightmare (17 floors) At the end darkrai finds you (disguised as Cresselia) and you prepare to fight, but then Drowzee appears and gets you out of the nightmare. A few nights later there are tremors and Palkia appears and talks you to Spatial Rift (about 15 floors) and then to get to him, you have to beat Deep Spatial Rift (about 10 floors) ,so you can battle him. Throwing a couple of Totter Seeds and using your strongest move usually beats him. After that, Palkia gets trapped in a nightmare and a stranger sends you in. There you talk to Palkia, who talks about the distortion of space. Then Darkrai, again, disguised as Cresselia, appears and prepares to eliminate you. The real Cresselia appears just in the nick of time (you can never die in these games anyway(!)), and blows Darkrai's cover. He tells you to meet him at Dark Crater, then flees. Cresselia will escort you to Dark Crater, (15 floors) then you have to get through Deep Dark Crater, (14 floors). Darkrai is waiting at the bottom with a Rhyperior, Mismagius, Magmortar, Aggron and possibly 2 more Pokemon. Don't let Cresselia attack Darkrai as Dark beats Psychic. It is also best to use regular attacks on Darkrai. After you beat him Cresselia joins your team and I think you are now able to evolve.

Hope this helps (alot!) =D