Allow more saved games
Hold [Shift] and click on the load/save game icons to open a normal save dialog window, allowing more than three saved game files to be used during the game.
Bypass password
Right click on the letter "O" on the word "Welcome" at Willmores workstation to bypass the password entry.
Talk to short Lone Gunman
Dial 1-202-555-0147 on your cell phone, wait a moment, and he will talk to you for a minute.