A few years ago, my friend had gotten a PS2 game demo disc from one of those game magazines. There was this really cool game on it that I forgot the name of. All I can remember is the player was a guy that looked really demonic, and he could summon like 6 floating demon/spirit guards that would kill the monsters for you. And I think the guard things could level up and become more armored/get better weapons. I'm not sure if the player used a gun, or a sword to attack. But the maps looked pretty modern medieval(modern day mansion?). And I think it was like.... a door way, an open area, a set of stairs(1 on each side), and after that was a hallway with a demon boss in it. My memory is a little fuzzy but I can remember most of it. If you know the name of this game can you tell me?
BTW. I have moved away since then, so I cant ask my friend.