Dino Stalker Cheats

You can use your gun to shoot the ending credits.
Game Shark Codes
Master Code (Must Be On) 0E3C7DF2 1853E59EEE8EFDFE BCD0A302
Infinite Health CEAFDF94 BCA9DB23
Max Recovery Aid CEAFDE76 BCA99CE6
Max Resuscitation CEAFDE72 BCA99CE6
Max Antidotes CEAFDE7E BCA99CE6
Max Tachyons CEAFDE02 BCA9C292
Max Points DEAFDF3A BC413102
Have Ampoule CEAFDE06 BCA99C84

Successfuly complete the game under Medium mode and unlock Duo Mode in the special optoins.
In Duo mode, you and a partner play with eachother by one contolling the person with a Dual Shock 2 controller while the other one shoots the targets using the Gun Con 2.

Completion bonuses:
Successfully complete the game under the easy difficulty setting to unlock the special menu and movie mode.

Successfully complete the game under the normal difficulty setting to unlock two player mode. In this mode, one person moves using a Dual Shock 2 controller, while the other shoots with a GunCon2.

Shoot credits:
You can use your gun to shoot the ending credits

Successfully complete the game under the easy difficulty setting to unlock the special menu and movie mode.

Finish the game using easy difficulty 1 time to get these extras