In the final building when you are reprogramming the computers. you use the fingerprint to get into the building.
You take it to the B.A.D control center.
Because you need the fingerprint to access the B.A.D control center.
The glass is for the B.A.D Control Center when you need to break in there. It has a fingerprint-only code.
You don't. You escape through the vent in the ceiling and use the fingerprint to get in the B.A.D Control Center.
The fingerprint unlocks the door in the B.A.D. satellite control center (right of Toupee Terrace). You will need to rescue all three spies to get the Ultra-Vision goggles and the passcodes. When you reach the door, click the glass on it and it will open. (see related question)
On Spy Island, rescue the three kidnapped spies, get the Fingerprint from the Bistro, and reach the satellite control center to stop the B.A.D. scheme. (see the related question below)
spy island
Spy island
You need the goggles
yes there is one
Rescue the third spy to get the ultra vision goggles. Then go to B.A.D. Control Center then use the ultra vision goggles to see the lazers and wait until they go off to go right. When you rech the top, use the glass with the fingerprint to get inside the door.
The glass is for the B.A.D Control Center when you need to break in there. It has a fingerprint-only code.