Ok great game, but the skeleton archers can shoot projectiles while frozen idk about the other creatures that can
4th boss can do it as well, I'm going to assume that all projectiles can be fired while they are frozen
Also, there may be a spawning problem for 20+ minutes, the 4th boss usually has a horde around it that keeps on growing, 25+ minutes is when it gets too laggy for my computer and the 4th boss can survive up to 30+ minutes when you have a set that doesn't have good piercing