That was nothing compared to Battle Royale. There were only 2 very young kids, and one's death was shown so quick you couldn't really make out what happened and the other one was just shot with an arrow. In BR, just about each death was very bloody and explicit. BR was also banned here for some time cuz all the actors in that movie playing 14-15 year olds were actually that age. But yeah, you should check out BR, very similar story but completely different tone as BR is more of a dark comedy.