“Terra Formars” is a space horror anime built on cockroaches, and it mostly earns its ambition. The 2014 television series follows Shokichi Komachi, one of two survivors of a Mars mission that discovered the Terra Formars — human-cockroach hybrids born of a terraforming accident. Now a virus from Mars is sweeping Earth, and Komachi boards Annex 1 to return to Mars for a sample that might stop it.
The premise is simple: cockroaches got big, mean and fast, and humanity is losing. The execution is dense. The show packs together genetic engineering, corporate intrigue, military conflict and a growing mystery about the origin of the Terra Formars and the A.E. Virus. It moves fast and rarely stops to explain itself.
Shokichi Komachi and the Annex 1 Crew
Hidenobu Kiuchi voices Komachi, the series’ moral center. He wants vengeance for his dead crewmates, but the show keeps him from being a simple hero. His fellow passengers include Marcos E.Garcia, Keiji Onizuka, Akari Hizamaru, Ivan Perepelkina, Sylvester Asimov and Michelle K.Davis — a multinational cast voiced by Akira Ishida, Kaito Ishikawa, Daisuke Ono, Yoshimasa Hosoya, Kenji Akabane, Unsho Ishizuka and Shizuka Itoh. Each brings their own agenda to the table, and the show spends time on their personal stakes before the bugs start eating them.
The Terra Formars Themselves
The show’s best sequences are the battles. The Terra Formars move with brutal speed, and the animation sells their menace. The show doesn’t shy away from gore, and the creature designs are genuinely unsettling. They’re not just bigger insects — they’re smarter, faster and stronger than any human in the room.
“To combat the Terraformars’ strength and agility, members of the second and third expeditions undergo genetic modification to inherit the characteristics of other organisms…”
That line captures the show’s central mechanic. Characters get new organs implanted to gain traits from other species, but the procedure carries a 36% chance of death. It’s a grim cost for staying alive, and the show doesn’t treat it lightly.
The Annex 1 Story Arc
The show covers the Annex 1 story arc, which is a major part of the original manga. That means the series is adapting familiar ground, but it also means the plot moves with confidence. The show knows where it’s going, and it gets there without wasting time on filler. The pacing is relentless, which is both a strength and a weakness.
The Second Season
A second season, Terra Formars: Revenge, followed in 2016. We don’t cover it here, but the first season sets up the larger story without rushing. The final episode leaves the A.E. Virus unresolved, which feels deliberate rather than lazy.
What Works and What Doesn’t
The show is at its best when it’s focused on the bugs and the fights. When it slows down to explain politics or backstory, it loses some of its momentum. The voice acting is solid across the board, and the animation holds up even during the busiest action scenes.
“Terra Formars” isn’t subtle, and it doesn’t pretend to be. It’s a show about cockroaches eating people, and it delivers on that promise. The mystery of the Terra Formars and the A.E. Virus keeps the show grounded in something beyond mere carnage, even when the screen is full of bugs.
The show’s weaknesses are structural. It’s dense, and some viewers will find the plotting hard to follow. The series also leans heavily on shock value, which can blunt the impact of individual scenes over time. But the core idea — humanity facing something it can’t understand — remains potent.
“Terra Formars” is a strong entry in the space horror genre. It’s not perfect, but it’s confident, well-acted and genuinely scary at its best. It earns its 7.3 out of 10.
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