1 of each type of plort to get in the ruins 1 slime key 1 for the main gate to get to the huge locked door and the great gate that you access with a slime key for either the indigo field to i recommend going through the forest go ahead and use the slime key on that door then gather one of each type of plort that you have so far and insert each in the correct statue throughout the surrounding area once you have filled each statue with each plort the gate will open and a word of warn the ruins are pretty tricky to get used to but overall have fun get the plorts and sell them
when your in you need 5 quantum plorts to activate the teleporter after that there are a few things you can get whilst outside the main section of the glass desert