Hackers starting on Horntail?

I meant, they change stuff in the wz-files to make monsters healable. And if they can make monsters undead, they should be able to make bosses unbossed. Mist may not work, but shadow web should.

Bosses have server side checks to ensure they stay bosses.
Editing the wz can only get you so far.

The wz's are Maple's biggest weakness, since they put far too much game processing dynamic under control of the clients rather than the server, but Nexon seems to have realized a bit more how phenominally stupid a design flaw that is and begun working to fix it.