Cyber City Oedo 808
Three episodes that each focus on a different criminal-turned-cop. The first is the funniest as it's entirely tryhard adult writing for Sengoku's dialogue. Cussing anywhere and everywhere. Kind of borderline List material otherwise, though.
Goku Midnight Eye
Similarly, first ep was much sillier than the second, but both were entirely entertaining. Basically what would happen if Goku from Saiyuuki was made into a Noir detective and then turned into a cyber god. First ep is true List material at least.
Also, vroom vroom.