If you are looking for a literal "key" to unlock all missions, the most effective method is not a code you type in, but a file replacement.
To understand the importance of the "Igi 1 All Mission Unlock Key," you have to understand the pain of IGI’s checkpoints. Igi 1 All Mission Unlock Key
is the mission number from 01 to 14) to jump to that specific stage. Formacionpoliticaisc Standard Cheat Codes If you are looking for a literal "key"
While Project IGI 1 does not have a "Get All Levels" code like its successor, you can use a keyboard shortcut to skip to the next mission during gameplay: Igi 1 All Mission Unlock Key
By default, the console is hidden. To reveal it: