Call of Duty – Roads to Victory – Sony PSP

Call of Duty - Roads to Victory - Platform: Sony PSP

In-Game Cheats:
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To unlock the following, you must beat the respective tour of duty 
(US, Canada and Britan).

Result               Code
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Unlimited Ammo     - Beat the game on the Green Difficulty
Unlimited Grenades - Beat the game on the Veteran Diffculty
Unlimited Health   - Beat the game on the Hardened Difficulty

Survival! Mode:
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Play and beat the game on Hardened Mode, then it will ask if you want 
to switch to survival mode. Select yes and it will switch to Survival Mode.