Sgt. Frog

Sgt. Frog is a manga series by Mine Yoshizaki. It was later adapted into an anime television series directed by Junichi Sato. Both the anime and manga are comedies that follow the attempts of a platoon of frog-like alien invaders to conquer Earth.

Sergeant Keroro, the titular character, is the leader of the platoon, but is at the mercy of a human family of three after he is captured while trying to hide in one of the family member's bedrooms. In both the manga and anime, Keroro is forced to do meaningless chores and errands for the family after his army abandons his platoon on Earth. The platoon has many failed attempts at taking over Earth.

Momoka Awaken! Third Momoka (Me, Myself and I'm Mean!) (Episode 75)
The third Momoka offers Fuyuki the chance to rule the world with the push of a single button. Though he refuses, Kero accidentally presses it, briefly causing the entire world to worship Fuyuki.

Dororo, The Assassin From the Past (Episode 189)
A rival of Dororo's possess Koyuki to fight Dororo.

Sgt. Frog the Super Movie 3: Keroro vs. Keroro Great Sky Duel
Dark Kero, intending the take over the world, releases his miniature drones across the globe. They send out hypnotic waves that brainwash most of the populace, including Koyuki and Natsuki. The two are made fight each other in a gladiatorial arena, but are soon freed from their trance by Giroro and Dororo.