Terra Formars (2016) is a Japanese sci-fi horror film that delivers a chilling premise with relentless action. The story begins with 21st century scientists attempting to terraform Mars by introducing algae and cockroaches to create a breathable atmosphere. Five centuries later, when the first manned mission disappears, a rescue crew discovers the horrifying result: the cockroaches have evolved into powerful, intelligent humanoid creatures that now dominate the red planet.

The film excels in creature design and atmospheric tension, creating genuinely unsettling moments as the astronauts confront these unexpected predators. While the CGI effects vary in quality, the practical creature work and production design effectively convey the claustrophobic terror of being hunted on an alien world. The international cast brings diversity to the ensemble, though character development takes a backseat to the survival horror elements.

Director Takashi Miike brings his signature visceral style to several sequences, though the film struggles with pacing between its intense action set pieces. The central concept remains compelling throughout - exploring humanity's unintended consequences when playing god with alien ecosystems. For fans of creature features and Japanese genre cinema, Terra Formars offers enough grotesque thrills and sci-fi concepts to warrant a viewing, particularly for those interested in biological horror and survival narratives in space.