It is such a pity that Resident Evil 4 cheat engine for PC doesn’t have so many cheat codes.
Resident evil 4 cheat codes Find line 00000320 and search for all the 0000 and then add these for your cheats: Hex Code - Item 00FF - Nothing 01FF - Combat Knife 02FF - Beretta w/127 03FF - Shotgun w/127 04FF - DumDum Colt