In a recent update of Pokken Tournament, Darkrai has joined the Arcade version of the now hugely popular fighter from Bandai-Namco and Pokemon.
Some time ago, it was revealed that code for Darkrai, Scizor, and Empoleon were found within the Wii U version of the game. Now that Darkrai has been revealed, it’s possible that the other two could be joining the roster as well.
It is unknown when Darkrai will join the Wii U roster, but it only seems a matter of time. So hold on to your hats.
Source: Pokebeach