Ultraman (1966)

S1E30 The Snowy Mountain of Illusions

In the mountains, a hunter asserts that he was assaulted by a massive, Yeti-like being. As the Science Patrol delves into the incident, their efforts are thwarted by a mysterious girl named Uki, who lives in the area. As they dig deeper, they uncover a shocking link between Uki and the towering creature, revealing secrets that bind them to the snowy peaks.