The tokusatsu DNA is running through animation instead of rubber suits, and it doesn't apologize for the cost-cutting or the stiffness. This is Ultraman stripped down to pure monster-of-the-week momentum, where the spectacle isn't in the animation budget but in the relentless parade of alien invasions and the boy who has to become a giant to stop them. You're watching the blueprint before anyone figured out how to make giant robot anime slick, and that rawness is the whole point.
The☆Ultraman is a 1979 action and science fiction TV anime that ran for 50 episodes. It holds the distinction of being the first Ultraman series ever made in animated form.