Hidden Merchant NPC called by other script

[karyuuouji]

Is this possible?
Making a hidden merchant NPC and showing it only when a certain criteria is met? (Ex. leveling up)

How can it be done?

 

[meko]

I think the only way to selectively hide a npc would be to make map instances but that adds a layer of complexity for nothing imho. You could just make your merchant say stuff like "I'm busy, don't bother me" if the criteria is unmet, and else call the shop menu