I’m giving it 4 stars because there’s only 12 episodes. As a stand-alone anime it holds up very well. I’ve never played the games as I generally do not enjoy this genre. However, the premises for the lore are very intriguing. If you are up late, can’t sleep, and need something to watch this is the show for you. It fits very well into the seinen noir genre occupied by the likes of Drifters, Durarara, Gintama, and Hellsing. The darker tones and almost noir detective like vibes are super real and dare I say relaxing? It’s a simple show. I have no context from the games but thoroughly enjoyed watching this. The music is pretty solid too. There might be some continuity flaws related to the video games. The artwork is pretty ahead of it’s time which I think I’d the greatest selling point for this show. If you want a comparison go watch a couple of episodes of the last season of Naruto. Do remember this was released in 2007 so games would have been on the PS1 and PS2.