[Matrixbeast]

Quote:

Originally Posted by GoseiWonder

Why was base Kiva heavier than Emperor? And why was it so heavy that the stunt actor couldn't work in it?

You also have to take into account weight distribution. Kiva had giant chunks of armored areas on the chest and only one leg. It's an issue since Kiva was supposed to be Wataru releasing his inner Fangire, so he fought with a more animal like style, involving throwing himself at enemies and tossing them around. It can be taxing, considering suit acting is already a tiring job.

For the question in specific: Because of poor suit construction. They should have used lighter materials on the torso and leg.