Lasers are environmental hazards first found in Chapter 3, Secret Labs. Green and yellow lasers can be avoided with proper timing, but red and blue lasers need to be disabled. Unlike with the Security Camera, you will be detected if the player breaks a laser when it is fully active even if Bob is disguised. A laser that is in the process of still activating (when it flickers) will not detect you until it is fully activated, this means that if you are breaking it before it is active, get out of the way! But, even if the player breaks the lasers, they will not be detected fully unless an NPC sees Bob.