Like for any other items ..always random buddy. I play this game alot and theres still some skulls that i have to drop

Good skulls will be more likely to drop in ng+1-2-3-4 than normal, as i noticed.
@Edit Oh,and if i can add something...for some reasons i dont know..i seems to always drop Skulls from barrels-urns type of things,rarely from monsters/boss..so if you want an advice ...pop all barrels-urns-skulls-little chest you see =)
This post was edited by Trysakthot on Nov 24 2012 10:08am