1
Mysterious Flying Saucer Invasion! Sky Knight Blast-off!
2
Enter the Island Fortress! Metropolitan X on the Brink of Danger!
3
The Invaders & Their Evil Powers Firing Up the G-Reaction Engine!
4
The Alien's Trap! Do You Read Us, Invincible?!
5
Extreme Offense, Extreme Defense Solving the Mystery of Element X!
6
Enter the Super Weapon! The Last Battle for Earth!