I just picked up Knights in the Nightmare, for the DS, on a whim.
What a strange, complicated and compelling tactical RPG/shooter hybrid. You basically control a 'Wisp' (ball of light) that can bring the souls of dead knights back to life, to fight monsters for you, while the Wisp must avoid the projectiles the enemies launch at you. But, there's just so damn much to the game, I... I'm not sure that I can properly describe the game without it turning into a 10-page dissertation. Just search Knights in the Nightmare, and read some reviews. It's unlike any game I have ever played.
E^D