They have no fixed pass mark and every application is taken on its merits. If you genuinely want to emmigrate to NZ I would suggest you come here on a Visitor's Visa. You are not legally allowed to work here on a Visitor's Visa but there is nothing to stop you going job hunting. If you have a job offer that will give you an extra five points. I think your chances of getting a job offer here are much greater than getting one from overseas.
Most employers like to meet people personally.
All you need to do is to have enough money to finance your living while you wait which could easily be 6 months or so for the Immigration Service. I hope that helps.