Bouken Shounen Shadar
English name: Adventure Boy Shadar
Genres: Adventure, Horror
Type: TV, Episodes: 156
Aired: Sep 18, 1967 to Mar 16, 1968
Source: Unknown
Rating: PG-13 - Teens 13 or older
Synopsis:
When Earth is threatened by the invading Ghostar, a young boy with nerves of steel and the strength of 50 men appears from a cave on Mount Fuji. He is Shadar, a boy of unknown origin who, with his faithful dog, Pinboke, fights to save the world. 

(Source: The Anime Encyclopedia)