This 2001 J-Horror effort from director Naoyuki Tomomatsu is set in a future dystopia where teenaged girls begin dying for no apparent reason — and often in an elated, chronically happy state of mind. One of these girls, Stacy, is back from the dead, however, and she’s ready to gorge herself on human flesh. As more and more teenage-girl zombies begin to feast on the living, the people of Japan brace themselves and try to find a way to end the madness.

It’s three years after the events of the original Battle Royale, and Shuya Nanahara is now an internationally-known terrorist determined to bring down the government. His terrorist group, Wild Seven, stages an attack that levels several buildings in Tokyo on Christmas Day, killing 8000 people. In order for the government to study the benefits of “teamwork”, the new students work in pairs, with their collars electronically linked so that if one of them is killed, the other dies as well. They must kill Nanahara in three days – or die.