Screamer 4x4 [cheats updated] Cheat Codes Go to main menu (where you can select free drive, trophy etc.) and press SHIFT. It will bring up a box to enter cheats. Enter any of the codes listed below: ALLTROPHIES All Trophies Access ALLTIRES All Tires ALLRDIFFERS All Rear Differentials ALLFDIFFERS All Front Differentials ALLENGINES All Engines RABACAR Raba Truck BIGFOOT Toyota Hilux Bigfoot ALLCARS All Cars