|First appearance|| (Younger) |
|Voiced by||Yuko Tachibana|
|Species / Type||Keronian|
|Occupation||Former Keron Army Soldier, Planet Stealer, Chef|
In episode 162, while Giroro and Keroro were gonna go inside their secret base, Gururu and Zurara showed up with Zurara's pet Andromedian Husky, intending to beat the two up. Until Garuru shows up to stop them, it is revealed that Gururu was expelled from The Keron Army Academy along with Zurara due to getting caught beating up Garuru.
He alter reappears in episode 285 as an adult criminal who steals planets. He reveals to Keroro that he and Zurara were always waiting until The Hinata's House was empty of both his Platoon and the humans which reside in the house. However, it is revealed that Aki Hinata is home, and the two criminals go under the illusion that they are some of Keroro's childhood friends. Despite being here to invade, the two criminals suddenly get attached to Aki, and they leave with smiles on their faces, even when they get caught by Poyan, they appear happy that they will be known as stars on Pekopon.
Apparently, Gururu says he is a great chef and Zurara says that it helps him in combat.
- Gururu is the bully from Keroro's childhood, due to the fact that Keroro remembers both his and Zurara's names once he sees them.