After you defeat Colonel Kluckin, you can find certain becons in the 4 locations that when touched, will make an unlimited amount of Furons that never die and attack your location with Disinegrator blasters (they only appear where you/the saucer/Willy is).
Harbor City: On one of the boats in the port (under the crates)
Fairfield: In the cornfield to the right of the power plant
Vietmahl: Behind one of the buildings (I can't remember exactly where)
If anyone could find the Fantasy Atoll location and put it on here, that would be great.
Added by: Fireblaze Apr 12th 2009, ID#2652