After watching all six episodes, I can confidently say that it's definitely one of the better Tekken adaptations and better video game adaptations in general. However, I have a few issues. 1. That stupid triangle shadow. I have no idea why that thing is there and it's pretty distracting. 2. The fights were alright and the way they end is pretty climatic. Why do most of Jin's fights just end with him doing d/3+4 (the double kicks)? It would be better if he did Electric Wind God Fist. 3. THE MUSIC. This is a really big one for me. Even if your fight is mediocre, at least have some bangers playing in the back. Unfortunately, this TEKKEN anime mainly revolved around the plot of TEKKEN 3 have forgettable tracks. Why didn't the music director use Tekken 3 OST let alone remix it. 4. Too many flashbacks. This could really ruin the hype and pacing of the fight if you use flashbacks too much which they used quite a lot. We don't have dementia director. We remember what happened in a few episodes. Some other things that bother me was that Jin's English voice actor had some weak line readings, other Tekken 3 characters didn't show up like Jack, Bryan Fury, or Eddie Gordo, and no after credits where it could've shown Jin training in Australia in his Tekken 4 outfit. I would like to see a sequel to this anime. Though with all the buzz around how Netflix treats its animation studio like crap, I doubt that will happen.
Overall, it's an alright adaptation. Nothing to write home about. There are some questionable creative decisions, but I thought it was okay.