Hi! I've recently been recalling something from my early youth, it was an anime about people fighting with giant robots (and yes I realize that doesn't narrow it down that much), but this was different. The only thing I remember seeing was a battle between two mechs taking place in the broken, grey remains of an abandoned city (I'd say it looked gritty, but then again that wouldn't really narrow it down either), and one of the mechs (the bad guy's I think) had a girl trapped inside of it with some sort of tendrils feeding off of her and the hero had to for-fit the fight so no harm would come to her. I really wanna watch it again, but I have no idea what it's called. So please, if you know of it, or have any information on it, I would be very grateful for it. Thank you in advance. =)