Keroro In Action captures Keroro in a dynamic combat-ready pose that conveys energy and humor characteristic of the series. The sculpt highlights Keroro's signature round head, large glossy eyes, and mischievous smile, with a compact, chibi-like body. The color scheme blends a vivid green skin tone with a contrasting blue uniform and orange antenna tips, plus light gray underbelly shading. Fine paint applications trace the toy's panel lines, the seam between suit and limbs, and the tiny pockets and badges that mimic the on-screen gear. Articulation is distributed across the neck, shoulders, elbows, wrists, hips, knees, and ankles to enable a variety of action poses, while a clear stand provides stability for dynamic display. The overall finish feels premium and collectible.

Keroro Gunsou, also known as Sergeant Keroro, is the leader of a band of amphibious invaders from the planet Keron who crash-land on Earth and end up living with the Hinata family in a quiet town. His grand conquest plans are constantly sidelined by the lure of Earthly pleasures: ramen, video games, and slice-of-life mischief. Despite his surface-level clumsiness and obsession with orders, Keroro is clever and has a long-running rivalry with fellow Keron soldier Giroro, a soft spot for Dororo, and a scheming ally in Kululu who engineers schemes with variable success. Over the course of the series, Keroro learns about friendship, loyalty, and the value of humor over aggression. The character's arc spans dozens of episodes where miscommunication and misunderstandings drive chaos and warmth, making him endearing to fans.