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When Astro is activated the city's power starts to drain, and he must try and stop the robot Magnamite from destroying everything. Armed with Kokoro (the ability of free will) Astro discovers his purpose for being activated.
Makoto Tsumura
Atom (voice)
Miki Maruyama
Uranium (voice)
Hisashi Katsuta
Professor Ochanomizu (voice)
Shin'ya Ohwada
Nagamiya Tenma (voice)
Kazuo Kumakura
Higeoyaji (voice)