Enter these at the password option from the Start Screen.

Password - Effect
KNQN - Day 61, San Francisco
MQGG -Day 61~ Train to New York
LPGG - Day 61~ Wild West
PSGG - Ending Sequence
NRGG - Old Foe
BHGG - Day 1, London, England
DCHJ - Day 18, Train
FSHJ - Day 20, Turkey
GKMN - Day 25, India
HLSN - Day 25~Wanted in India
CLGG - Day 3, Paris, France
JMBJ - Day 40, China