I've never understood how a g-unit in its dormant state is activated. Is there a special trigger somewhere on it, or does the unit only bond to those people who it finds physically compadible?

In the anime Sho hits his head off the control medal and in Out Of Control his fingers press against it, so I think its when the soon to be hoast makes contact with the control medal.

Remember that Risker merely entered the room an looked at the Guyver II unit and it activated.

I though Risker opend up the dome thing.... and when it hit the air it became active and jumped on him cause he was the only one nearby...

Sith Guyver has just made me notice that from what Iv seen the only units that have been activated without physical contact are the damaged units.

Wonder why only Damaged units activate that way? A need for self preservation? not like it helped much in risker's case. But my guess is it may be an automatic function activated once the unit get's damaged...

In the 'touched up' manga, Takaya made the drawing of Sho's activation more clear.

It appears in the 'out of control' OVA that the unit-g has something like a control metal on each side. If both are actually control metals, I don't know.

In the touched up manga version, Sho pressed the central dome of the control metal in. It clicked. That appears to be the trigger that normally starts the bonding proccess.

I always thought that the damaged control metal (in the guyver II scenerio) was having problems restraining the organic parasite like bio material from hunting. I just figured it was trying to turn Lisker into a meal; and the control metal did what it could, accepting it as a bonding.