Expert mode 

• Select "Credits" at the options screen then press Down(3), Triangle, Down(3), Square, Left, Right for more challenging opponents. 

Online Strategy Guide 

• Our quick online guide should help you get through all the rough spots and even lists the different endings. Register here to access this guide for free. 

Infinite Health 

• Select "Credits" at the options screen then press L1,Triangle, Up, Down, Circle, Circle, Triangle, Square, Right, Square 

Infinite ammunition 

• Select "Credits" at the options screen then press L1, Triangle, Up, Down, Circle(2) 

Instant puzzle solution 

• Select "Credits" at the options screen then press L1, Triangle, Up, Down, Circle(2), Down(3), Up. 

One hit kill with firearms 

• Select "Credits" at the options screen then press L1, Triangle, Up, Down, Circle(2), Triangle, Square, Down, R1. 

One hit kill with smack-jack, knife, or brass knuckle 

• Select "Credits" at the options screen then press L1, Triangle, Up, Down, Circle(2), Triangle, Square, Down, L1. 

Rapid fire 

• Select "Credits" at the options screen then press L1, Triangle, Up, Down, Circle(2), Up(3), Down.