The Big O a classic mecha anime by Sunrise , Roger Smith is a Batman like character in this story , he out to unsolved mysterious, and battle giant monsters , this is a common Mecha trope , he also battles with other Giant Robots, the one problem I have with this show is the ending, its really a huge cliffhanger This film Noir like anime is no Stanger to mecha , and Tokusatsu references, like Ultraseven , or its Bruce Timm like Art style This is a must watch mecha anime The other problem Ihave besides the ending , is the lack of answers to somethings