Tekken 3 is a fantastic fighting game! Even today I get re-addicted to it when I find it lying around the house. It's so easy to get into. It has a simple command list and every character has their own specific fighting styles which made them unique and fun to play with, instead of the classic Ryu, Ken, Akuma scenario.
I really can't believe this is a PS1 game either, it moves so quickly. So quick in fact that I thought that Tekken 4 was visibly slower and more bulky than this game ever was. My favourite fighting game is the original Soul Calibur and I generally think that nothing comes close to that, but this is immensely fun and enjoyable.
I'd forgotten how good it was, it definitely still holds its own today.