Infinite health and ammo:

press and hold right and left trigger then press left and right thumbstick and hold quickly press white, black,black, white, white, black

This code can be entered at any time during gameplay,just hit the back button which will take you back to the menu screen then enter code next there will be an option "cheat"

This may take some practice to get fingering right

**important** you must already have at least a few painkillers to refill them / max 8 per refill ammo doesnt matter,it can be empty and it will be refilled.

Get all weapons

Complete game in easy or hard mode, you will then get two more difficulty settings and in "cheats" menu you will have get all weapons option.