Cheats

Hidden Areas

Marked walls can are sure-fire signs of hidden areas. Blow a sizable chunk out of walls with posters or other distinguishing features to unlock hidden areas.


Stealth Mode

In the single-player mode, as a businessman and as a scientist, the objective is to avoid being "made" and slipping past the guards undetected. In order to do so easily, look at the ground as you walk past guards. Detection is based on eye-contact.


Roof of the lobby multiplayer level

First, go to the second level where you pick up the rocket launcher, stop at the curved wall facing the overhead windows and blow it up a couple times, you should make it to the roof and find a rail gun and a fusion rocket launcher & and pretty good sniping spot.