During gameplay enter the following codes to activate the corrresponding effect. You will hear a confirmation sound if you have entered the code correctly.
Hold L2 and press Triangle, L3, Circle, R1, Square.
Stage Section Clear:
Hold L2 and press R1, Triangle, X(2), Circle, R1.
Hold L2 and press X, R2, Triangle, R2, Square, L1.
Hold L2 and press Square, Triangle, R1, X, Circle, L1, Square. When you hear the confirmation sound hold R2 and press L1 to emit a nuclear wave.
Hold L2 and press X, R1, L1, RT, Square, Triangle (execute the swim faster move while swimming to activate the code).