The Big O (1999)
Watch if: you don't mind things staying vague, and "Japanese version of Batman" sounds delightful to you
+ Awesome retro style in neo-noir setting
+ Some nice undercooled humor
- Plot and meta story seem to have holes in it
At the core a kid's show with giant plot holes. You can take some of those holes as part of the symbolism. Humor, superb retro style, and existentialist theme lift this series. Some blatant parallels with Batman. If you want a Disney ending, look elsewhere.
Premise: Wealthy vigilante protects last city on Earth aided by giant robot of forgotten technology. In fact, everything before 40 years ago is forgotten.
Reviews graciously provided by Imgur user StringVariable. All names and media listed here pertaining to The Big O are copyrighted by Sunrise