Mary Alice Legrow manga
Takahata Shun's day at high school begins just as normal and boring as ever, but it doesn't end that way. After his teacher's head explodes, he and his classmates find themselves forced to play children's games, such as Daruma ga Koronda (a game like Red Light/Green Light), with deadly stakes. With no idea who is behind this mysterious deadly game session, and no way of knowing when it will finally end, the only thing Shun and other students can do is keep trying to win...
Yasuto Akashi skipped school the day the games began, after having a fight with his best friend. While his classmates competed in the games at school, Akashi and other students who skipped school must compete in a separate set of games in order to survive. This series takes place at the same time as part one. This is the 2nd part of Kami-sama no Iutoori, but no knowledge of reading the 1st part is required.
From Shoujo-Sense: Arata was just your normal high schooler, until one day when things started to move. He gets entangled in a phone game called "Dragon Collection". With his only redeeming quality being lucky, what can he do about conquering the World?
Ichiru Mizunuma is the student council president at the prestigious Ichimatsu High School. Shockingly, he is stabbed by fellow student and council vice president Kyosuke Hino. What is Kyosuke's motive? What is the badly injured Ichiru's secret plan? From the accomplished duo, writer Muneyuki Kaneshiro (As The Gods Will - The Second Series) and illustrator Naoki Serizawa (SARU LOCK), Billion Dogs is a fresh and exciting high school picaresque manga!