The enjoyably histrionic Lord Of The Flies-meets-The Running Man premise of Battle Royale is taken a film too far and far too seriously in this confused, confusing mess of a sequel.
Another class of errant schoolkids is abducted by the Japanese authorities, fitted with explosive collars, and despatched to a bleak island for a particularly harsh lesson in survival. But instead of killing one another, they must fight a band of young terrorists led by previous Battle Royale 'winner' Shuga. To the death. The very messy death.
The opening scene is identical to the first Battle, with a wacko 'teacher' (think Mr Blonde in a leather jacket) pairing up the kids and gleefully demonstrating that if one of the pair dies, so must the other. Then, from the chaotic Saving Private Ryan-like landing on the island to the dreadfully protracted denouement, it's an epilepsy-inducing procession of carnage and cod philosophy.
Had Fukasaku and Son stuck to pure action, BRII would have made for queasy fun. But their propensity for heavy-handed sermonising on the nature of war and society is not only unconvincing, it's boring. If the characters put as much effort into fighting as they do delivering 'profound' speeches, their chances of survival would be infinitely higher.
That's not to say that lots and lots of people don't get blown up, shot, eviscerated and decapitated. They certainly do. Unfortunately, BRII looks like a video game and sounds like a sociology lesson as given by someone who's had too much saké.