Akira: That Bike Slide Tho! Practical Effects GOAT?

Yo, MikeCinema here. Just re-watched Akira for like, the 10th time. Still blows my mind. Forget CGI, man, this movie is all about that old-school animation and pure visual storytelling. Seriously, where do they even BEGIN to start animating this thing!? I know, not a stunts movie but these guys are doing things that are super dangerous in animation and the result has that same high-octane feel. My question is about that opening bike chase. Specifically, Kaneda's iconic slide to stop. Is that whole sequence hand-drawn? It's so fluid and dynamic. I'm thinking about how they planned that out. Like, did they have a tiny bike model and film it sliding? Were they just REALLY good at physics? It looks so real, I could feel the asphalt burning under my own bike. I know it's animated, but it feels more convincing than some modern action movies. I think they really tried to think about how that action might look and feel in real life. And don't even get me STARTED on Tetsuo's transformation sequence. That whole body horror thing is insanely well done. The practical feeling they give it is just outstanding. I always wonder what kind of reference material they had available to them back then. Did they just go at it with their minds! Anyone got any behind-the-scenes info on how they pulled this off? I need to know the secrets to great action like this movie! Also: What other non-action movies (animation or regular) do action really well?