Decisive Battle! Groovy-Groovy Island!
Heybot and Nejiru awaken to the sounds of samba music, and find the people of the town engaged in a mad dance. Everyone, from the maids to the king, is acting strangely! It turns out it all started when the king's old rival Norio arrived to steal back the Groovy-Groovy Screw. To save his father and all the people of the town, Nejiru and Heybot must venture Groovy-Groovy Island to get it back! Source: crunchyroll
Aired 13/11/2016EP 8 - Decisive Battle! Groovy-Groovy Island!
Heybot!
The anime takes place on the screw-shaped island country of Screw Island and follows the "Vocabot" Heybot and his partner, Prince Nejiru as they collect different "Vocab Screws". When the Vocabots wear the Vocab Screws on their heads, they're able to compete in "Vocab Battles," battles for who can think up and tell the best jokes.
(Source: Anime News Network)