Gavan Infinity: Review: Underground Fortress

Episode 4 of Super Space Sheriff Gavan Infinity, titled “Underground Fortress,” is a high-octane installment that masterfully expands the series’ multiverse lore while maintaining the classic Metal Hero spirit. The episode centers on MultiEarth Σ3302, where Reiji investigates a series of vanishing facilities alongside the Galaxy Federal Police duo, Mikuro Arimoto and Shoko Hamura. This setting provides a perfect backdrop for the show’s signature mix of investigative tension and imaginative sci-fi environments, leading the team into a treacherous subterranean lair.

The episode’s standout moment is the introduction of Gavan Ameise, the ant-shaped hero of Σ3302. Seeing Shoko use the Gavarion Trigger to transform Mikuro adds a refreshing layer to the “Infinity” gimmick, proving that any entity—even an ant—can become a Gavan in the vast multiverse. This creative swing leans into the delightful “non-sense” often associated with high-concept Tokusatsu, yet it remains grounded by Reiji’s initial skepticism and the surprising effectiveness of Ameise’s “tickle” combat style against the enemy henchmen.

Visually, the production continues to push the boundaries of the Project R.E.D. initiative, blending modern “cutting-edge” visual effects with classic practical stunts. While some critics have noted inconsistencies in the CGI quality, the choreography remains a highlight, particularly the desperate struggle against the villain’s drill machine and the subsequent turnaround during the underground fight. The mechanical designs for the “Underground Fortress” and the drill-based weaponry feel suitably menacing, though the “toy-like” aesthetic of some gadgets continues to be a minor point of contention for some fans.

Overall, “Underground Fortress” successfully builds on the momentum of the premiere, moving away from the rushed pacing of the previous episode to deliver a more focused narrative. By blending humor, world-building, and intense action, it solidifies Gavan Infinity as a worthy successor to the legendary Space Sheriff franchise. The episode leaves viewers eager to see how Reiji’s journey through the various Earths will eventually tie together the ever-growing roster of multiverse Sheriffs.