Balloonga

Disaster strikes when the first manned spacecraft surveying Saturn crashes off Japan's coast. As Jun and Yuriko fly over the area, they run low on fuel and return to find a strange, floating blob. It expands, destroying their car and injuring Ippei. Hovering over Tokyo, it absorbs all kinds of energy. Professor Naramaru's suggests the UN launches a satellite to lure Balloonga into space.