game doesn't freeze, it lags cause a special event will happen, the weapon is just around the area where you see anabel fighting a monster, she'll throw her weapon, and that's what you'll need to get.
On, and those aren't demons, they're tarshiers. and the circle as what you can see is the prison, and the prisoners are the cans, it's actually only a can and alot of players while the can is defended by one person. the players who throws sandals needs to hit the can and get it out of the prison(circle) and get their sandals and return to their base(which is normally a little far from the prison). if the can is returned to the prison and the players who tries to get their sandals back gets tagged by the defender(the one who defends/returns the can in the prison) he/she will be the new defender, and so on and so forth. also, if there are no more sandals for the players to throw, they can kick the can.