The best combination for me was:
Me: Pikachu lv 60+ (For Discharge) (Or you can have a fire type to get Overheat)
Partner:Doesn't really matter as long as it's a high level and that it has a long range move (Like Flamethrower or Hydro Pump)
Cresselia: Speaks for herself just defend her and you'll be OK
Hope I Helped and Have Fun ;P
Yes because you can do anything you want after you beat darkrai but there is nothing speacial at the end
Darkrai is in Miracle Sea B3F Crevice Cave Deep B2F Mt. Travail 17F Spatial Rift B14F and Mystifying Forest 13F
go through 30 floors and then beat mew
go through 30 floors beat mew then your done
go through 30 floors then beat mew on the 30th
in pmd2: -zapdos -mewtwo -entei -raikou -celebi -latios -latias -deoxys -lugia -ho-oh -darkrai in pmd3: -zapdos -deoxys -darkrai -latios -latias -deoxys (not the one in temporal spire) -celebi
go to darkrai level and beat darkrai
Then you have to beat Darkrai.
yes
You have to beat the game to battle darkrai.
beat darkrai. and you have to be good at the game! :)
Someone may edit this but you can finally beat darkrai after you beat the ENTIRE game, not JUST the story mode.