Fuyuki, Birth! Jerseyman Fuyuki / Keroro, the Great Throat Candies
When Fuyuki puts on a special jersey from Keron, he becomes Jerseyman, a globetrotting superhero with a special interest in cryptids. Then, the Keroro Platoon and the Hinata family all inadvertently suck on cough drops that cause them to spout weird little phrases at the end of each sentence. What's even weirder is that they seem to enjoy it! Source: crunchyroll
Aired 22/01/2011EP 348 - Fuyuki, Birth! Jerseyman Fuyuki / Keroro, the Great Throat Candies
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)