Nobita And The Steel Troops ((full)): Doraemon:

As Nobita and friends (Doraemon, Shizuka, Gian, and Suneo) befriend the gentle but battle-ready Zanda, they are gradually drawn into a conflict between the robot army of Mechatopia and a small resistance of remaining humans. The leader of the robot army, the giant and chillingly calm Commander Riruru, arrives on Earth to prepare for an invasion — believing that all inferior biological life must be eliminated for the sake of order.

Doraemon: Nobita and the Steel Troops is the seventh feature film in the beloved Doraemon franchise, directed by Tsutomu Shibayama and released in 1986. While it carries the signature charm of time travel, secret gadgets, and childhood adventure, this installment stands apart for its unexpectedly mature and philosophical themes — exploring war, free will, loyalty, and what it truly means to be human.

The story begins when Nobita, tired of failing at everything, buys what he thinks is a robot toy from a mysterious catalog that appears in his room. To his astonishment, it turns out to be a giant, walking mecha named Zanda Claus — or “Zanda” for short. Zanda is not a toy but a combat robot from the planet Mechatopia, a world dominated by machines that have overthrown their human creators.

This is a simulation/mini-game mode accessible from the main menu, allowing players to rebuild and customize robots found in the movie.

What follows is a gripping race against time, as Nobita’s group uses Doraemon’s gadgets not just for fun, but to defend their world and, more importantly, to challenge the very ideology driving the robot army.