Red, Green, Blue, and Yellow

I think that the cyborgs in the movie labeled certain parts of the tests that the main guy went through by color. Each color represents a different function.

Red must mean very important. The semi they are driving is red, the helicopter at the end is red. Im thinking that everything that is colored red is crucial to the tests that the main character is going through. Lawrence fishbourne was carrying a red case with a gun in it

Blue seems to be danger or an opposition. The guards with guns were blue. And the driver of the semi was wearing all blue.

I'm not sure what green or yellow mean. I know the old woman's car was green. She was definately a malfunctioning cyborg.

I think the color white also means something.