Yuusha Exkaiser Episode 29: Piggy Bank That Scattered in the Sky
Episode 29 of 48 of Yuusha Exkaiser, aired August 25, 1990, 25 minutes. Available with English subtitles and dub where released.
Episode summary
When aliens plan to invade earth, the young Kouta along with a giant robot from outspace named Exkaiser must team up to save the world and his friends.