Known also as Super Pig, Superswinka, Ba Bi Bu Be Buurin, Ba Be Bu Bi Boink!, Super Cerdita, and Super Big (so many names, maybe somebody heard about it?)
Plot from Wikipedia:
Karin Kokubu (Kassie Carlen) is late for school one day when she comes across an apparently injured yellow pig. It turns out the pig wasn't injured but just hungry, and he gets back his health when he eats Karin's apple. When Karin gets to school she discovers that the pig has stowed away in her backpack which causes her more trouble. Later she meets the pig again and finds out he can talk and fly, he gives her a "pigompact" which she opens; a pig snout appears from it and attaches itself to her nose! She finds the pig again, who explains that he is actually Prince Tonrariāno III (Iggy Pig) of the planet Buuringo. He tells her how she can transform: by saying "BA BI BU BE BOorin!" she transforms into a superpowered pink piglet called Buurin. This is not something Karin is happy about at all as she'd rather transform into a heroine like her idol the henshin hero tokusatsu character "Cutey Chao" (who is possibly a reference to Cutey Honey). Tonrariāno (who she calls Ton-chan) tells her if she can collect 108 pearls by doing good deeds as Buurin she can do so. The pearl collection operates on karma, meaning if Buurin abuses her powers she will lose pearls.
Some epizodes can be watched on http://www.crunchyroll.com/library/Tonde_Buurin.
Subject: Tonde Buurin 
Fri Oct 24, 2008 4:31 pm
