Super Famicom: Apr.-Jun. 1990

Actraiser design documents

Yuzo Koshiro, head of the company Ancient, and musician for games like Actraiser, Streets of Rage, and Story of Thor, released pictures in June 2016 of several games' design documents kept at Ancient.  So far, Thor and SOR2 have been given somewhat detailed overviews, and now we have some high-quality scans of Actraiser's beginnings as well.

Sacred Master -> The World Master -> Actraiser

The game went through several title changes before its release.  What remained consistent, though, was the game design and theme, as can be seen in the 2nd picture, the game outline.

I've transcribed this game outline HERE.