A while back I saw this game in a Youtube video but now can't remember the name of it or find the video it was in. I believe it was on the DS or 3DS because it used two screens, the top screen was just an extension of the bottom one to let you see what was coming. It was a top down run and gun game, almost like Valkyrie no Densetsu as far as gameplay goes except maybe always walking/aiming up like in a vertical shooter, and I think you controlled a group of characters and could switch among them for your attack. The game had somewhat of a horror theme and possibly an anime look to it. I think that it might be a game that wasn't released in the US.
Whatever I'm thinking of looked awesome in the video but I didn't have and wasn't planning on getting a DS at the time so I didn't pay much attention to the name but now I have a DS Lite and have been thinking about this game ever since it arrived. I know the description is vague but does anyone have any idea what game I'm talking about? I've done a bunch of searches and skimmed a bunch of videos but still can't find anything even close to what I remember.