After hitting us with a teaser trailer and announcing the title for PSP in June, the folks at Atlus have now released the full trailer for their upcoming hybrid RPG game Knights in the Nightmare. The trailer shows off all kinds of gameplay and appears to be a combination of strategy RPG and a whole bunch of other game styles. Check out the trailer below and you will see what I mean or you can wait until Knights in the Nightmare is slated to hit retailers and PSN on October 19th to grab the game.