You have to keep playing in Arcade Mode. Each time it's a Ranking Match, that is the most important time that you win because if you do so, your rank will go up by 1. You will start off as Beginner then 9th kyu then 8th jyu then 7th kyu then 6th kyu then 5th kyu then 4th kyu then 3rd kyu then 2nd kyu then 1st kyu then 1st dan then 2nd dan then 3rd dan then 4th dan and you go a lot and the last thing is tekken god