Getting a key and using a key
 

So how do I make that when I go in a certain page I get an Item (Key) like:

Walking in the bushes you find a key! (And it adds a key to inventory)

AND:

A page that I MUST have a key to go in, otherwise it just says:

You do not have the required items to go there!


I am using Mysidia 1.3.1 and I can't find many mods cuz it's new, if anybody knows how to do this, please, tell me

Well this you will have to build an exploration system of your own, at least for the time being.

Ok thanks for the answer, what about making so only Male & Female adoptables can breed and if it's Male Male or Female Female it doesn't work? I have Male and Female sprites for my adoptables so :L

The breeding script already does that. If you want to create an exploration system based on this, take a look at breeding.php and hopefully you will see how it works.