Ep. 51: The Skull Army and the Murderers From Hell
Aired on November 18, 1973
51
Episodes
- Ep. 47 · Horrible! Operation Infernal W
- Ep. 48 · The Robotic Fighter Boss!!
- Ep. 49 · The Crazy Robot's Great Fight
- Ep. 50 · The Jet Scrander is shot down
- Ep. 51 · The Skull Army and the Murderers From Hell
- Ep. 52 · Koji is injured and Sayaka takes control of Mazinger
- Ep. 53 · Second Transformation!! The Camouflaging Mecha-Beast
- Ep. 54 · Explosion! The Power Of The Rocket Punch!!
- Ep. 55 · The Grand Scheme To Climb Down Mount Fuji