Chat
When inside a game waiting room, press L1, R1, L2, R2, L1, R1, L2, R2, L1, R1, L2, R2, L1, R1, L2, R2, L1, R1. If you entered the code correctly, you will hear a sound. From now on, chat can be accessed by pressing Square inside any game's waiting room. This code must be reactivated after you reset or turn off your PlayStation 2.