All venues
At the main menu, hold L1 + Triangle and press Left, Up(2), Right, Down(2), Right, Down to unlock all venues.
All apparel
At the main menu, hold L1 + Triangle and press Right(2), Left, Up(3), Down, Left to unlock all apparel.
Normal sized players
At the main menu, hold L1 + Triangle and press Right(2), Up, Down(2), Left, Right, Left.