Hidden Characters  At the title screen, press Up, Up, Up, R1, L1, R2, L2,  Down.

Infinite Lives  At the title screen, press Up, Down, <, >, R1, L2, R2, L1.

Infinite Super Bombs  At the title screen, press Square, Square, >, Down, Down, <, Square, Triangle.

Level Select  At the title screen, press Down, <, R1, R2, L1, L2.

Machine Gun  At the title screen, press >, >, Square, Triangle, >, <, Down, Down.

View FMV's  At the title screen, press Triangle, Triangle, Down, Square, Up, Up, <, Triangle.