Jake Hunter: Detective Chronicles Cheats

Passwords
At the main menu, select "Password" and the game will prompt you to enter a 4 letter password on the typewriter for unlockables:

HINT: Hints (Unlockable 7)
BIKE: Jukebox (Unlockable 6)
ROSE: Movies (Unlockable 5)
GONG: Visuals 02 (Unlockable 3)
AAAA: What is a password? (Unlockable 1)

Passwords (Japanese Version Only)
The Japanese version of the game contains 20 passwords to unlock:

HINT: Hints (Unlockable 20)
NRJQ: Jake Hunter Quiz (Unlockable 2)
BOXJ: Jukebox (Unlockable 12)
NONE: Mini-Case Extra 01 (Unlockable 14)
ENGI: Mini-Case Extra 02 (Unlockable 15)
BORO: Mini-Case Extra 03 (Unlockable 16)
HIGE: Mini-Case Extra 04 (Unlockable 17)
STOP: Mini-Case Extra 05 (Unlockable 18)
NANT: Mini-Case Short Story (Unlockable 19)
HANA: Movie Viewer (Unlockable 9)
SFCE: Staff Comment 1 (Unlockable 4)
PRSD: Staff Comment 2 (Unlockable 6)
MINU: Taiba's Extra Story (Unlockable 13)
OTSB: Unused Character Designs (Unlockable 10)
YASA: Visuals 01 (Unlockable 3)
BUTU: Visuals 02 (Unlockable 5)
CARS: Visuals 03 (Unlockable 7)
MVCL: Visuals 04 (Unlockable 8)
PAPA: Visuals 05 (Unlockable 11)
AAAA: What's a password? (Unlockable 1)