Play Nadia Online

Nadia: The Secret of Blue Water is a Japan-only Nintendo Entertainment System release from 1990, developed by TOSE and published by Tomy. It is based on the anime of the same name, and its arrival on the NES places it in the later part of the console's lifespan, a time when developers were pushing the hardware with more complex licensed titles.

You control Jean, a young inventor, navigating side-scrolling stages filled with mechanical foes and environmental hazards. Your primary weapon is a slingshot, which you use to defeat enemies and sometimes to hit switches. The game is structured around screen-by-screen exploration, requiring you to find keys to unlock doors and progress. The pacing is deliberate, and the difficulty is notable, with precise jumps needed to avoid pitfalls and enemy patterns. Playing it feels like a methodical, sometimes punishing, trek through a clanking, industrial world.