Whew. Went a long fun journey with this hack. Got every MP/SS encounter besides a few legends I already have shinies for and thus didn't care to try to recruit them.
And almost every shiny (even the Carbink which I feared it will crash the game because it's reported Shimmer Hill is currently buggy. Thankfully it didn't possibly because it's an initial enounter.), besides a few Ultra Beasts/Paradoxes/Two Deoxys formes and Zero Island Legends.
And now for a few bugs. Steenee and Tsareena share the same Pokedex number (762) which got me confused on why Tsareena highlighted yellow when I didn't get it yet. Same with Hisuian Zoroark having Zorua’s dex number. (Doesn’t apply to the Unovan Zoroark.)
Spirit Shackle doesn't seem to be working. Shows up as a blank name in the moves info and does nothing but a glow when I try to use it.
Also remember Shiny Stakataka hatching from an egg, this time another anomaly happened! This time with an Alcremie form. Not even a shiny. Spinda Cafe Egg, BTW.
Also, you can get duplicate Last Resorts from hatching Milcery from the Egg