Slash Them All [Adfree]

You managed to escape from the prison cell, but who could have guessed that most of all you would like to stay in it. Once you started your escape the zombie apocalypse began, but fortunately you have a sword. Zombies will run on you with an endless stream, but do not get upset, because you can turn it into entertainment. Cut off their heads so that they fly off into the basketball basket, and the inmates will support you. How long can you stay?