Hit ~ and type Cheat.Heal().

Unverified. Use the TILDE key to toggle the drop console.

Cheat.God(1) ... God mode on.
Cheat.God(0) ... God mode off.
Cheat.Heal() ... Health back to 100%.
Cheat.GiveAmmo() ... Full ammo
Cheat.GiveRifle() ... Rifle added to stock
Cheat.GiveDynamite() ... One dynamite added to stock
Cheat.MagicAmmo(1) ... Infinite ammo on (Boolean)
Cheat.MagicAmmo(0) ... Infinite ammo off (Boolean)

1. Create and edit the shortcut to the game executable, adding and extra parameter so it looks like this:

intall path ... \Call of Juarez\coj.exe -debugconf=DebugConf.scr

2. In your CoJ game folder, find the DebugConf.scr file and open it in Notepad.

3. Add the following two lines to the end of the file, then save it:

!NoLogos()
NoLogos()

4. Boot the game as usual and enjoy!