My first PlayStation was a PS3, and thankfully, around then they were still releasing a number of ported “trilogies”.
Even though mine was not a backwards compatible model, I was also able to play digital versions of the Fatal Frame series, which is sadly now pretty much inaccessible.
I never played Jax, but I saw an analysis of its vector-based facial animation, where there were few enough vertices for animators to directly tweak; and it does feel like a nostalgic way to make cartoony, expressive faces.