This partial set of five pages of notes shows some of the earliest thoughts that went into the creation of Science Ninja Team Gatchaman. At this stage it was called Science Ninja Squad Number 5 and featured quite a few different ideas than what finally ended up on television. Written in the Spring of 1969, here are writer and series planner Jinzo Toriumi's early directions for what would become Gatchaman.

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Page 1
About Science Ninja Squad Number 5

Statesmen, soldiers and scientists have been selected from every nation to help organize the Phoenix headquarters, a group formed for world peace. The motto of Phoenix is peace and justice and its headquarters is a disk-shaped ship under the Pacific Ocean. Phoenix is the name of the headquarters and at the same time is it also the name of the giant disk ship.

Page 2
When needed, the Phoenix and the Science Ninja Squad can be dispatched and ordered to report to any part of the world. The Science Ninja Squad can chase down worldwide criminal organizations anywhere on the planet. Wherever the Science Ninja Squad goes, any evil scientific weapons are also destroyed. People who desire peace welcome the Science Ninja Squad and spare no cooperation for them.

Page 3
The Phoenix is mobile and has the ability to appear from deep within the ocean to soar high into the sky. The Phoenix is stocked with the newest and best technology and it is incredibly self-sufficient. The five-person Science Ninja Squad is but a single unit of the Phoenix. There are five people who are leading characters in this production, but Number 5 is the main hero.

Page 4
About the weapons

The Science Ninja Squad has mastered Japanese ninja techniques to the point where they're second nature. They don't have to think about them to use them every day. Devices are created via scientific methods. Hero Number 5 rides on a super motorcycle to overtake enemies, moreover, he has a number of other special devices in addition to the super motorcycle.

Page 5
Number 5 carries a special gun. It is not a gun designed to kill however, instead its bullets put enemies into a state of suspended animation, like putting them to sleep. As for the other members, 1 through 4, each of them is also very skilled with weapons. All of the vehicles, weapons and other objects for the Science Ninja Squad are created in the Phoenix.