Tokyo Gore School(2009)

Tokyo Gore School is a Japanese action thriller following Fujiwara, a popular high school student whose life takes a violent turn when he's suddenly attacked by classmates. He soon uncovers a sinister mobile phone game spreading through Tokyo's schools, one that hypnotizes victims into mindless killers. As the mystery deepens and the body count rises, Fujiwara must navigate the deadly corridors of his school to survive and expose the game's horrifying truth. Caught between ordinary teenage life and extraordinary terror, he races to stop the viral phenomenon before it consumes everyone around him.