First, you must pass Dr. Spyglass's test. Then, you can exit out of Dr. Spyglass's store. Go a little to the left, and then climb up the ladder. You will see a door. Enter it and you will be in the Lab!
First go to director d and then go to the top of the roof. He will give to a message to decode. It says OPPOSITE DIRECTION. WHEN DR SPYGLASS POINTS TO A SYBOL/LETTER CHOOSE THE ONE THAT FACES IN THE OPPOSITE DIRECTION. If you do this correctly Dr. Spyglass will say meet me upstairs. then go outside and jump up on the mustache. You should see a door go in there.
Go to the top of the SPY building and talk to the spy there. Decode his message, and you have your answer.
You do Dr. spyglasses' eye test and he tells you to meet him up stairs. climb up the ladder and walk in the door. talk to Dr. spyglass and he gives you the chameleon suit.
You need to get the chamleon suit from dr. spyglass.
Grapple to his equipment downstairs, and press his equipments.
I think he is the spy director from SPY island...
The suit is given to you by Dr. Spyglass, who runs the Spyglass Eyewear store. (He is secretly a spy scientist.) (see related question)
you need to fail the eye exam
There is no secret entrance you have to get the invisible suit from Dr. Spyglass
go into spyglass eyeware. ask for an eye exam. then click the E's pointing the opposite direction. if you do it right, he will meet you upstairs. (he will unlock the door.)
You can get the Chameleon Suit from Dr. Spyglass, that lets you blend in with the surroundings when you stand still. You get it from him at Spyglass Eyewear. Go to the store and ask for an eye test. When the doctor points at a figure, choose the one that is the opposite of it (M instead of W, E instead of backward E, etc.). He will go upstairs and you can enter from the outside door. Dr. Spyglass is working with the "good spy" agency and will give you the Chameleon Suit. Use it to get past the guards and dogs to rescue the first spy, being held prisoner at the docks left of Main Street.
You can't get rid of them. The only way to get past them is to go see Dr. Spyglass. Then ask for an eye exam,when you do you must answer the letters in the opposite direction. When you are done with the exam, he will ask you to meet him upstairs. You must go outside and open the door that is now unlocked. Talk to Dr. Spyglass and he will give you a chameleon suit. Wear it and you will be able to sneak past the B.A.D. agents. I hoped I answered your question! :)