Question

Can you get Darkrai in any Pokemon game without cheating?

Answer 1

If your Switch has save data from Brilliant Diamond or Shining Pearl, Legends: Arceus' Request 93: "The Darksome Nightmare" will allow you to catch Darkrai near the Clamberclaw Cliffs. This is the only legitimate Darkrai available to date without events.

Diamond, Pearl, Platinum, Black, and White will also let you obtain Darkrai if you perform the DNS Exploit, a glitch that uses fan-hosted servers to access old Mystery Gifts. Pokemon obtained through this exploit are legitimate, though it can be difficult to set up — refer to our detailed guide for help.

Darkrai (Bulbapedia)

Answer 2

There's a new event out for Black and White for Darkrai. Nothing about it is known except the event will start at May 9th, 2012.

Besides that, there is no way to get Darkrai in-game.

Answer 3

Not without trading or if they release another event later on.

Answer 4

*Well you could Poke-Transfer the Darkrai into Pokemon White/Black

*You can get it from a trade from the GTS or from a friend

*Finally, there could be an event in the future

This is for Gen.5 OK

Hope this helps =P

Answer 5

Of course. You needed to get the Member Card, which was an event a while back. You could then go to Newmoon Island and capture Darkrai there. There have also been a slew of other events that have happened in the last few years.