Alpha 3 has a roster that will take you months to master each character. I haven't seen so many Street Fighter characters (31) in one game before for the PS and PS2. The unique feature of this game is the ISM system where you can choose which finisher move you want. The best feature is the World Tour which is practically a Street Fighter RPG (why can't the new Street Fighter games have this?!) where you level up your character as you win matches.