I love this series so much I stole my favourite characters name( Liquid ).
In all seriousness, though, I adore Shibata Ami and all of her work because I saw this anime randomly when I was browsing around on the family computer back in 2007 or so. I stumbled across a lot of anime back then, but THIS is the one that stuck with me the most. I consider it a critical part of who I am, not only as a person, but also as a writer.
It's your traditional Gag Manga, with an underlying plot. The plot isn't especially well-done or written, but it's fun and it helps amplify the amazingly fun cast of characters. The plot also isn't especially clear in this sequel, and I'd highly suggest to read Nangoku Shounen Papuwa-kun first before watching this. It helps clear up the plot better than the brief synopsis in this anime, especially concerning Kotaro, Shintaro, Kintaro, Jan, (Gion Kamen) Arashiyama, and Liquid.
Also, due to the fact the manga for this sequel is untranslated, the full story isn't readily available to english speakers, and you're left with the rushed ending from the anime. And trust me, there's a LOT more to the story that the anime doesn't get the chance to touch upon. Maybe one day.... One day. ( I've been saying 'one day' for over 10 years now )
This is a series very near and dear to my heart, and if I could, I'd make a full-blown essay on how great Shibata Ami and her works are. But I'll spare everyone that, and just say, hey! If you like stupid gag anime and manga, then give this a shot! The insanity of Papuwa Island is something every connoisseur of the genre should experience at least once.