No One Lives Forever – Playstation 1

No One Lives Forever - Platform: Playstation 1

All Weapons 
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Go to menu and hold:L1 and press X,square,X,circle,L2,R2,X 
a cheat option menu will appear. 

Mission select 
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Highlight Load Game at the main menu. Hold L3 + R3 and 
press X to unlock the Mission Select screen.