Ep. 6: Enter the Super Weapon! The Last Battle for Earth!
Episodes
- Ep. 2 · A character arrives at the island fortress while Metropolitan X faces imminent danger.
- Ep. 3 · The Invaders Activate the G-Reaction Engine Using Their Evil Powers
- Ep. 4 · The Alien's Trap! Do You Read Us, Invincible?!
- Ep. 5 · Extreme Offense and Extreme Defense Solve the Mystery of Element X
- Ep. 6 · Enter the Super Weapon! The Last Battle for Earth!