The robot’s eye turns from red to blue.

What if the enemy robot just needed a friend? 🤖💔 Rewatching Doraemon: Steel Troops and still crying over Zanda Claus. #Doraemon #SteelTroops #AnimeFeelings

What makes Doraemon: Steel Troops so compelling is its villain. It is not a typical greedy warlord or a monster. The antagonist is a "Robot Utopia" from a parallel universe—a planet entirely run by machines.

NOBITA But Doraemon… Zanda is still inside. He’s scared.

In the vast pantheon of children’s entertainment, few characters are as globally recognized as Doraemon. The robotic cat from the 22nd century, with his magical fourth-dimensional pocket, has spent decades delighting audiences with whimsical adventures and gadgets that defy the laws of physics. For many, Doraemon represents innocence, childhood fantasy, and the comforting assurance that any problem can be solved with a "Dokodemo Door" (Anywhere Door) or a "Take-copter."

This is the chilling "Utopian Paradox." The Steel Troops are not evil; they are lovers of peace who believe peace is impossible with free will present. Their leader, "Grand Commander" (formerly a companion robot to a dying boy), is one of the most tragic figures in anime history. He commits atrocities not out of malice, but out of "love" for a human who passed away.

When Nobita’s hobby of collecting random junk leads him to a mysterious metal ball, he accidentally activates a giant robot named Zanda Claus from the planet Mechatopia. But Zanda isn't just a toy—he's a war machine from a distant civil war between a dictator and a resistance of small, organic beings. Soon, Earth is invaded by an army of identical "Steel Troops" (Robot Soldiers). Doraemon and the gang must decide: Are robots only tools for war, or can they have hearts? With the help of a tiny alien named Lilulu and a rebellion fighting for freedom, Nobita and his friends pilot a transforming mecha to stop the cold-hearted commander and save two worlds.

The 1986 original, directed by Tsutomu Shibayama, arrived during a golden era for mecha anime. Japan was obsessed with giant robots, from Mobile Suit Gundam to Mazinger Z . Doraemon, always a reflection of pop culture trends, dove headfirst into this genre but with a signature twist.

This film is a direct spiritual successor to Osamu Tezuka’s Astro Boy . Doraemon: Steel Troops asks a single question repeatedly:

Doraemon: Nobita and the Steel Troops 1986 is extremely underrated