This is Megastorm's new form, powered up under the
influence of evil Angolmois energy. He transforms in three stages,
from destroying dinosaur to monolithic base to attack fortress.
His audacious offensives, making use of his tremendous power, force
the Cybertrons into tight spots again and again. He is on the verge
of no longer considering Galvatron his older brother, and the danger
of a split in the camp now looms large. The Gigahorn on his head
is harder than diamond, and can pierce through all manner of things.
There are no known variations of Gigastorm.
Availability: This figure was available in Japan in 1998.