Bandai Namco has released the teaser trailer for its upcoming 3DS game Assassination Classroom: Grand Siege on Korosensei.
The game puts players in the role of a student assigned the task of assassinating their homeroom teacher, Korosensei.
Watch the trailer below.
Somewhat Short Version
https://www.youtube.com/watch?v=D2vV9TC-5CE
Somewhat Longer Version
https://www.youtube.com/watch?v=XdwNJTJaEJ8