Various Cheats and Hints
Cheat mode
Begin game play eliminate the first two aliens and enter the room from which they emerged Then enter one of the following codes to activate the corresponding cheat function
Level select
Hold L1 L2 R1 R2 Triangle then intentionally lose Keep the buttons held through the ending FMV sequence A green light will confirm correct code entry A new starting level from 1 to 16 may now be selected at the opening screen
Unlimited energy
Hold L1 L2 R1 R2 X then intentionally lose Keep the buttons held through the ending FMV sequence A blue light will confirm correct code entry
All weapons with unlimited ammunition
Hold L1 L2 R1 R2 Circle then intentionally lose Keep the buttons held through the ending FMV sequence A red light will confirm correct code entry
