宇宙鉄人キョーダイン

Used to appreciate these when I was little. A TV series started in 1976 in the vein of Masked Rider (same author in fact). What I had were the plastic rubbery toys, not the 超合金 metal kind. Never got to see the TV series, though.

Earlier this year the DVD was released in Japan. Four different titles and rather costly at about $80 per title. The illustrated book is a collector's item and fetches upto $600 online at a Japanese hobby shop.