New class Slayer
Slayer - girls whose power and strength admired all the warriors of the MU continent. They used only the heaviest and deadliest weapons, were cruel and never allowed the enemy to retreat.
Mu Helper and Offexp
MuOnline takes care of the time of its players. Set up the auto-fight function: the character will pump himself, not forgetting to use consumables - runes and scrolls for experience.
Unique battles and bosses
Battles and boss campaigns drain, exhaust and give a feeling of delight after a victory (if you manage to get it)
Hold and defend Castle
Part of the PvP content for clans. Owning a castle brings a number of advantages to the clan (tax revenue, unique location, items, bosses)