Hes the last boss, in dark crater Hint: bring ALOT of reviver seeds since Cressilia will be fighting with you and darkrai has max evasion and nightmre.
Mystifying Forest and a few other dungeons.
Then you have unlocked ''Free Mode'', then you can evolve your starter(s). And you can go solo, if you wish.
arceus garitina darkria groudon dragonite
darkria you get it when you talk to someone but im not eczacly shoure
you have to beat the main story and the darkrai battle is in the afterstory. as far as I know, you cant recruit him.
In Pokemon Mystery Dungeon: Explorers of Sky, Darkrai can be found in Dark Crater dungeon after completing the main story. You will need to defeat Darkrai and recruit him into your team to evolve your Pokemon by fulfilling certain conditions.
No,arcus is not in mystery dungeon 1 or 2
No.
after you beat darkria and beat the final maze do whatever you want in the game.
you can either A restart your game or B you cand finish your adventure log and get every ledgendary to join your team see the question :http://wiki.answers.com/Q/In_mystery_dungeon_2_how_do_you_get_to_the_seven_treasures
beat darkria and manaphy will jion your team and after 3 days manaphy will tell you whare mirene resort is.
Mystery Dungeon 3 isn't out yet. And no, they won't work.