Battle Royale 2 is supposed to be poor, Shuya is the head of a Terrorist group who take on some people on another island and everyone has a collar again and has a partner so if your partner dies YOUR collar explodes.
However it isn't the classic the original is.
Kiriyama is actually a part of the class in the book, he has a problem in his brain which means he can't feel emotions. He heads up Numai's gang.
Kawada is also cooler i n the books. Kinda tougher and more fearless.
Shuya is decent in the book. Bit of a pacifist but all the girls like him, he plays rock and roll and he's the best baseball player in the school.
The other two characters who are infinitely better in the book are Shinji Mimura (the computer hacker guy who is the best basketball player in the school and has a history of getting it on with all the ladies) and Hiroki Sugimura (with the GPS) who knows martial arts.
I got confused with the film last night because the translation was different to on the DVD which I own. It wsa like watching two different people write the same plot for a film.
Though I have to say, the classical soundtrack is phenominal, especially when Kiriyama is killing Mitsuko Souma (this ac tress, Kou Shibasaki was due to play GoGo's sister in Kill Bill, trivia fans!)