|This article is about a/an episode in Denji Sentai Megaranger.|
We Won't Lose! The Decisive Battle is on Christmas Eve (負けない! 決戦はクリスマスイブ Makenai! Kessen wa Kurisumasu Ibu?) is the forty-third episode of Denji Sentai Megaranger. This is the concluding episode of the Neziranger arc, featuring the death of NeziRed, NeziBlack and NeziYellow and the final appearance of Evil Electro-King Javious I and the destruction of Neziregia.
The Megaranger track down the stolen Mega Voyager, leading to a climactic showdown with the Nejiranger... and unknowingly advancing Hinelar's ultimate desire!
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- This episode is notable not only for the death of the remaining Nezirangers (NeziRed, NeziBlack, NeziYellow) but, with their death, the death of Evil Electro-King Javious I and the destruction of the Nezire Dimension.
- With Javious' death, all of the remaining Neziregia forces are completely owned and under the control of Dr. Hinelar, while the Death Neziros takes up residence on Earth for the remainder of the series.
- Final appearance of Super Galaxy Mega.
Denji Sentai Megaranger Volume 5 features episodes 42-51. 
- The Enemy Within - Power Rangers counterpart in Power Rangers In Space. See comparison page.
- Andros and the Stowaway - Power Rangers counterpart in Power Rangers In Space. See comparison page.