The Guyvers abilities are judged out
of ten by how well they fought against Zoanoids and Hyper Zoanoids in my opinion:
Effectiveness - 7.7
The Guyver has a metal sphere
in the center of the it's belt line, which controls gravitational forces allowing them to fly and fire pressure cannons
The Guyver often uses the pressure cannon
as a trump card against strong opponents.
The Gigantic Guyver's pressure cannon is 76x
bigger than the normal Guyver's pressure cannon.
The Guyver's gravity orb also allowes the Guyver to burrow
under the ground. The Guyver dose this by holding the pressure cannon on front of it, dissintergrating the earth on front
of it while the Guyver uses it's gravity control ability to 'fly' under ground.