Headhunter cheats and cheat codes for Playstation 2

Debug Mode (PAL version):
Press and hold R1 + SQUARE, then press START during gameplay. 

2nd floor, bikers hideout door password:
Enter: 1993

Equipment and ranks
Goggles: Reach AAA
Missile Launcher: Reach AAA
Sub Machine Gun: Reach A
CodeBreaker: Reach A
Action Belt: Reach B
Stimulator Automatic +: Reach B
Simulator Shotgun Rank: Reach B
Automatic: Reach C
Scorpion NerveoStunner: Reach C


Unlock Star Locker: Reach Get all weapons with unlimited ammo
Set new Hank Redwood's records in Leila mode, after finish the game once. 
You can't finish the game normally, if the Star Locker is used. 

Unlock harder mode:
Finish the game once and save the game when prompted, after the endig credits.
To begin a new game in harder mode, answer "yes". Your saved files will be marked 
with V2. You can re-play the games up to V8.