Hell

1) Hold down the [Left mouse button]+[Alt]+[Ctrl]+[G]
at the same time.
2) A dialog box will appear asking for a password.
Enter "natas live"
3) Now go to the GAME menu and you will see extra options
like the ability to goto any area you want, get any
object, view cut scenes, etc.

Be careful though, you could screw up the sequence of
events and ruin the story line. (Information from Cheat Machine)