Start the game with the command-line parameter "-DEVMODE" (example: "C:\Far Cry\farcry.exe" -DEVMODE). Press [~] (tilde) while playing to bring up the console then type \save_game. For quicksave access, bind this function to an unused key.
For in-game cheats, a new file is required to be created. Easy access along with instructions are included with the file. As a bonus, all levels will also be unlocked. Access the file here:
Add color to your name by using the following characters BEFORE the text you want to be colored at the character setup screen. Multiple colors may be used.