you go to the eye doctor and ask for a eye exam and answer all of the letters opposite from each other.
On the eye test just do the opposite of the sign he gives you. Then you can get the chameleon suit.
You can only wear the chameleon suit on Spy Island.
if you have the chameleon suit, you don't need an eye exam.
go to the docks
When you wear the Chameleon Suit, you have to be standing still for it to work. So before you get too close to a guard or a dog, begin to stop. Wait until they have gone away before you begin moving again. (see related question)
You can get get past the guards by the satellite of B.A.D.
The chameleon suit.
by blending its body colour to suit the enviroment
you don't
it is a suit you need to get past the guard dogs
stand still
Use the chameleon suit.