Art of Fighting/Secrets

Play as Mr.Big
Play through story mode until you reach Mr.Big and have a second player join in. Mr.Big will now be a selectable character.

Play as Mr.Karate
Play through story mode until you reach Mr.Karate and have a second player join in. Mr.Karate will now be a selectable character.

Tear King's clothes off
If you finish King with a special move, her clothes will be torn and it will be revealed that she is a woman.

Fight against Geese Howard
Play though story mode without loosing one single round and you will be able to fight against Geese Howard after you beat Mr.Big. If you loose one round have a second player join in, beat him and continue.

Tear King's and Yuri's clothes off
Same as AOF1: finish them with a special move to reveal their underwear.

Birthday Gift
Each character will be powerd up on their birthdays and able to perform a Desperation Move at any time.