In Keroro Gunso, partners are known as Keronian guardians.
Partners
- Keroro and Fuyuki Hinata
- Giroro and Natsumi Hinata
- Tamama and Momoka Nishizawa
- Dororo and Koyuki Azumaya
- Kururu and Mutsumi Saburo
- Pururu and Chiruyo Tsukigami (Short time; anime only)
- Sumomo and Haruyo
- Nobibi and Kiko Katoyama (Not partners any more)
- Shin Keroro and Tomosu Hinohara
- Terara and Shion
- Omiyo and Kappa (Possibly)
- Dark Keroro and Alien Fuyuki (Hinted)
- (Possibly) Doruru and Alien Natsumi
Natsumi owned Nuii when she was little
Beta Partners
Early on, before the main plot of the Keroro Gunso manga was finished, the Keroro Platoon had female partners, instead of both male and female. The characters were:
- Jun Yamato and Keroro (Jun was later changed to Natsumi)
- Chinatsu Yahagi and Corporal Kekero (Chinatsu most likely became Rie Imogo due to her bottom text saying, associated rival and Corporal Kekero later became Giroro.)
- Haruna Hibifu and Master Sergeant Rororo (Master Sgt. Rororo became Kururu)
- Fuyumi Yukikaze and Private Second Class Roroke (Fuyumi most likely became part of Aki Hinata's character, due to being as a street racing, boss, sister and Private Second Class Roroke became Tamama)
- Akie Asagiri and Lieutenant Rokeke (Lieutenant Rokeke became Lance Corporal Dororo)