Pokemon Mystery Dungeon: Explorers of Fortune (1.2 Update Finally Out!)

[jayjay294]

created this account to say: this romhack is fantastic and has really enhanced the experience of my favorite game of all time. the addition of shinies has got me addicted to hunting all over again. this is all i've ever wanted in a romhack and more (OH MY GOD MANUAL CONTROL IS LIFECHANGING)

though i'd like someone to tell me: how do i go about unlocking zero hoard? i get the key at the semi-final floor of a zero isle, but it doesn't seem like i can do anything with it right now. i know it got reworked in the 1.2 update, but i don't understand what the key description or the OP means for me to do with it. i've only done west so far, but i'd like to know before i dive into the harder ones in the event that it's something i need to do while i'm in the dungeons. i know i'm probably missing something extremely obvious but i am rather dense and when it comes to this i'd rather know what i'm doing than take my chances (and have to do south more than once OTL)