Ep. 43: No Time Remains! The Fortress of the Scientific Research Institute!
Aired on June 29, 1975
43
Episodes
- Ep. 39 · The Final Challenge! The Sky Fortress, Michelos!!
- Ep. 40 · The Crimson Cross of Death!!
- Ep. 41 · Arrival at Demonica, the Impregnable Fortress
- Ep. 42 · The Underwater Graveyard!! The Wounded Runaway!!
- Ep. 43 · No Time Remains! The Fortress of the Scientific Research Institute!
- Ep. 44 · Intense Counterattack: The Volcanic Base Under Fire
- Ep. 45 · The Insane Great Mazinger!!
- Ep. 46 · Fighting Spirit! Until This Life Of Mine Burn Out...
- Ep. 47 · Mortal Blow!! The Ultra-High Speed Great Booster