Chili Con Carnage (PSP)

Infinite Ammo
Finish a stage while keeping your combo meter from reaching zero. You'll unlock a "chili" at the end of the stage which will get you infinite ammo on a certain weapon.
It's recommended to get Bronze medals on the stages too, which will increase your health and combo time.

Effect - Code

Infinite AK-47 - chili on "Need a Ride" stage
Infinite Combat Shotgun (Spaz) - chili on "Ay Mama" stage
Infinite Grenade Launcher - chili on "Arena Del Toro" stage
Infinite Heavy Handgun (Python) - chili on "Mucho Manure" stage
Infinite Heavy Machine gun - chili on "Los Toros" stage
Infinite Hunting Rifle - chili on "Cargo Chaos" stage
Infinite M-16 - chili on "Rooftop Inferno" stage
Infinite Rifle - chili on "Something Rotten" stage
Infinite Rochet Launcher - chili on Final Mission stage
Infinite Shotgun - chili on "Abandon Ship" stage
Infinite Submachine Gun (Uzi) - chili on "Nice Wheels" stage

Invincibility
Create a new Profile and type ERNESTO as your name.

Skip Level with Gold Rank
During Gameplay, press X, Square, Triangle, Circle, then Select. You'll skip the level and complete it's challenge with a Gold Rank.
Invincibility
Create a new Profile and type ERNESTO as your name.