The darkruai are creatures from 'Ratchet & Clank: Hiding Ships', there able to cause nightmare's while someone's dreaming and seem to use blasts of blackish-reddish-purplish energy, also known as 'Extremedark Blasts', they seem to be born on a dark planet located near Planet Damosel in a dark zone of the Bogon just called 'Bogon Hole'. They bear a heavy resemblence to Darkrai from Pokemon, because of the same colours and able to send people into nightmare's.
I though I should add this, an area which Ratchet only goe's to when sent into a nightmare caused by Lucky Star Wakka], Its just a almost grey place with black fog, however, Lucky Star Wakka's eyes illuminate the area just causing the wall's to turn black and feature holograms of NPC's and final bosse's in all the other games(Ex. The Hypnotist, Chairmen Drek, Billy, Dr. Neferious etc.) Mrs Pacman 16:35, 1 April 2008 (UTC)