Better - Himitsu Sentai Goranger Internet Archive

Himitsu Sentai Goranger (1975–1977) — Toei’s first Super Sentai series and the origin of the sentai formula: color-coded heroes, transformation devices, team leader dynamics, monster-of-the-week structure, and giant-robot-style finales (though Goranger itself used mecha sparingly). It’s raw, fast-paced, and full of 1970s tokusatsu production aesthetics.