Garuru is an S-rank sniper and the leader of the Garuru Platoon, as well as Giroro's older brother. He is an indigo Keronian frog with a black helmet, featuring a red downward-pointing triangle with a line in the middle for his personal symbol. Unlike Giroro, Garuru wears a belt that serves as a power source rather than a memento for fallen comrades from the Keron war.
When Garuru learned that the Keroro Platoon had made no progress on their mission and that Giroro was not leading them, he decided to take the Garuru Platoon to Pekopon to handle the mission themselves. Garuru defeated his brother in a one-on-one gun match but was later beaten in a rematch. Thanks to the Keroro Platoon's friendship and combined strength, the Garuru Platoon was ultimately defeated. However, it was strongly suggested that Garuru's true mission was merely to assess the Keroro Platoon's abilities.
Garuru and his platoon reappear in episode 130, where he faces a clone of Giroro, and in episode 154, he helps the Keroro Platoon defeat ZZZ. Interestingly, Garuru is the only one who can pronounce ZZZ's name without biting his tongue. In the manga, he appears in volume 14, surprising Giroro by revealing he is there for a short holiday. He brings a gift to Giroro, which grows into a large, flying sweet potato, and the brothers must team up to bring it down—a ploy by their father to teach them a lesson. Powered Natsumi eventually shows up, helping Garuru defeat the potato with her beam sabers since it is immune to guns and other ballistic weapons. Garuru is impressed by the girl's abilities.
During the fight with the potato, there is a flashback to Giroro and Keroro's childhood, showing a younger, presumably teenage Garuru defending his younger brother and friend against two bullies who intended to take over their secret base/playground. Notably, the younger Garuru wears the same kind of belt as present-day Giroro, with a rectangular buckle. In volume 15, Garuru sends Pururu to investigate the Keroro Platoon's desire to invade.
