Big Spice Girls and Hidden Screen

Big Spice Girls: Select a Spice Girl, and at the Mixing Room screen, press and hold Start and press Cir, Square, Cir, Square. If you entered the code correctly, your chosen Spice Girl will turn into a giant.

Hidden Screen: Select a Spice Girl, and at the Mixing Room screen, press and hold Start and press Cir, Tri, Tri, Cir, release Start, then simultaneously press Start, Select, L1, L2, R1, and R2. If you entered the code correctly, a hidden screen will appear.