Btooom!

Btooom (ブトゥーム) is a Japanese manga written by Junya Inoue and serialized in Weekly Comics Bunch and later in Monthly Comics Bunch.

Story
The plot resolves around the online-shooter game Btooom!, put in reality. People who are a nuisance to the world are nominated by relatives to participate in this game and they are kidnapped to a deserted island. There, they have to kill seven other players with special bombs (known as BIM) to escape the island and the game.