Ultraman (1966)

Hayata, a dedicated member of the Science Patrol, is drawn into a perilous encounter with an alien from the Land of Light, resulting in his near-fatal injury. In a twist of fate, this extraterrestrial merges with him, granting Hayata a second chance at life. Whenever monstrous threats emerge that surpass the capabilities of the Science Patrol, he transforms into Ultraman by activating the beta capsule. This powerful hero emerges to defend Earth, showcasing courage and strength in the face of overwhelming danger.