Danganronpa: Bloody Rampage (Fanganronpa)

Hiroshi Tanimoto isn't your average everyday high school student, but after one night, he wakes up to find himself trapped in a private school for gifted individuals, along with fifteen other students, each one possessing an Ultimate ability. It doesn't seem to be too bad at first, until a sadistic teddy bear forces them to compete in a game where both life and death are at stake.