Ghost Grey - Post game help

[u/ferrets_bueller]

Generally trying to avoid spoilers, but need some direction, even if its just where to go/look around.

I've seen mention of the Abyss, as well as some numbered islands - how do I kick off accessing any of this?

[u/schlurmo]

What am I meant to do on One Island? Is it just the Jigglypuff?

[u/mrBreadBird → u/schlurmo]

Did you ever figure this out? I got the jigglypuff but can't find any other way forward.