He is on newmoon island to get there you need to get fullmoon island and use walkthrough cheat east of door on fullmoon island and you will reach another island that is newmoon island
You can only find Darkrai through a Pokemon Event.
you find darkrai on the bridge on mount kosicotsku
Darkrai is a Pokemon from Generation IV, and Pokemon ruby is a game from Generation III , so you can only get darkrai in Pokemon Platinum, Diamond or Pearl
You cannot find the Pokemon Darkrai in Turnback Cave in the game Pokemon Diamond. Instead you can find him in Newmoon Island.
YOU CANNOT FIND DARKRAI IN EMERALD, SAPPHIRE, RUBY, FIRERED, OR LEAFGREEN!!
U find Darkrai in Dark Crater.
eret
you can find creselia on moonlight island but i dont know about darkrai.
A Mystery Gift event will be starting on May 9th for Darkrai.
You will find Darkrai at Newmoon Island but you need a membership card and go to that one house that is locked.
No Pokemon evolves into darkrai.
you should watch every episode of Pokemon to find it.