[Guyver Spawn]

Quote:

Originally Posted by Startaiger

There is also a comedy/parody called Dokkoider .

I remember that anime. It was a parody of Ultraman. The 1972 Devilman TV series feels pretty close to Toku and Kajiu flicks. This version of Devilman can grow giant and fight other kajiu similar to Ultraman.

Takegami: Guardian of Darkness is also similar to Ultraman with the idea of a hero that can grow giant to project humanity from evil giant monsters. Even episode 2 has a homage scene of Ultraman.

Those are the only anime that I can think of that feel close to Ultraman.