Battle Fever J (バトルフィーバーJ, Batoru Fībā Jei) is a live-action tokusatsu TV series.

It was also the first series in the Super Sentai franchise where the heroes must control giant robots to defeat a monster who itself has grown to a gigantic size.

Toei's tokusatsu adaptation of Spider-Man was the first to introduce this format and was also the inspiration for this and the subsequent entries in the Super Sentai series.

Egos tries to stop the construction of the Robot, but the monsters they send to perform this task are defeated one by one by the Battle Fever Squad.

The team destroys the machine and slays the mysterious deity Satan Egos himself with the Lightning Sword Rocketter sword-throwing move.

Secret Society Egos (秘密結社エゴス, Himitsu Kessha Egosu) is a religion of mad egocentrists who intend to plunge the world into chaos.