he will show up in the final maze but you need a mystery part and a secret slab
U find Darkrai in Dark Crater.
yes you must have it or darkrai will not show up
Darkrai will be Level 53
after that you gotta find manaphy and it gives you the location of marine resort
beet darkrai
If you choose the answer '..........' when Darkrai asks you to join his world of darkness, Your Partner will scream to you telling you it's a nightmare and you smack Darkrai Just like if You Refused to Join His Army Hope This Helped =)
in azurills nightmare. darkrai is the one causing the nightmare and is the boss of this dungeon.
Fight Darkrai
once you have beaten darkrai in dark crater.
you have to beat darkrai then wait afew days
70 or higher
darkrai tries to destroy the world