Ep. 51: The Sphinx's intense fury and wrath are displayed
Aired on December 16, 1981
51
Episodes
- Ep. 47 · Spaceship in Imminent Danger
- Ep. 48 · A human-shaped rock formation
- Ep. 49 · Drake's Revenge
- Ep. 50 · Astro, Dr. Elefun, and modern-day vikings search for the lost tomb of Odin in Ordin
- Ep. 51 · The Sphinx's intense fury and wrath are displayed
- Ep. 52 · Astro Boy retrieves a blueprint from Grota Republic and bonds with Nuka, a robot girl containing a neutron bomb.