dino crisis
 

i am stuck on on the game and i was wondering if there is any cheats out there for dino crisis on the ps1 other than the gameshark codes that i keep coming accross please please help if you can.
thanks in advance

taken from www.gamefaqs.com

Extra Outfits - Beat the game twice within seven hours.
Infinite Ammo - Access all endings.
Operation: WipeOut - Beat the game in less than five hours.