Vital Points of Jyodan (Upper Row) and Spots to be attacked
Gekon is a Fatal Attack by use of Ken (Fist), Uraken (Back Fist), Isshiken (Index Finger Fist) and Dagger (the but end used as bludgeon). The affects Fatal (according to Hohan Soken) Because of loss of both organs of sense and motor caused by the stimulation of brain nerves.
For more modern use (as killing people is frowned upon), this target can be struck with less force or power transfer to simply cause dysfunction, incapacitation and or unconsciousness.
A strike on this target will cause the head and arms to drop as the knees buckle causing the body weight to drop and limiting motion. Temporary shock and confusion as well as dizziness is the least physical affect that would still yield the practitioner the advantage for escalation, control or escape.
To learn the method, targets and see the affect in real time, the extended films are located at these links: