There is a cherry bomb tree in the bottom right corner. You pick it and push it over to the bouncy flower. Then you drop it then move it to the other flower, then move it to the spy's cage. Hurry though! It will blow up!
The third and final spy is on the Rooftops above the Grease Monkey garage on Balding Avenue. To reach her, you need the Grappling Bowtie from the second rescued spy.
(see related question)
The third spy has it
there is no key for the 3rd spy
There is no greenhouse on Spy Island.
By rescuing the third spy.
pla help
go to B.A.D. Headquaters.
Infiltrate the enemy headquarters: the B.A.D. control center.
You have to find the third agent. She will give you the goggles and the last password clue.
The tallest building on Balding Avenue. It is where the third spy is held. (see related question)
Spy Island is island #6. After Spy Island is Nabooti Island #7
Rescue the third spy from the Rooftops above the Grease Monkey garage. You will need the Grapple Bowtie from the second spy. (see related questions)
The third passcode (from the 3rd rescued spy) is "removal." The codes have to be entered separately on the transporter computer: laser (enter) hair (enter) removal (enter).