Keroro, Invading Daily Life / Keroro, Hooray For Reset
The trial run for Keroro's latest invasion plan involves mixing up all the buttons and switches in the Hinata home, but when he tries to go "wide," the underground base's buttons get messed up, too. Then, when everyone is mad at Keroro, he uses a device to erase their negative short-term memories, but finds the process addictive... Source: crunchyroll
Aired 29/01/2011EP 349 - Keroro, Invading Daily Life / Keroro, Hooray For Reset
Sgt. Frog
Keroro is a frog-like alien sent from his home planet on a mission to conquer Earth. But when his cover is blown, his battalion abandons him and he ends up in the home of the Hinata family. There, he's forced to do household chores and sleep in a dark basement that was once supposedly a prison cell haunted by the ghost of an innocent girl. He even spends his free time assembling Gundam model kits. During his stay, Keroro meets up with subordinates who were also stranded during their failed invasion.
(Source: Anime News Network)