Wonder what the Clear Amulet does.Found this list on Reddit by a user that has been manually memory-editing to find the new items. Several of them crash, but we can see that it’s mostly food & TMs. Seems like there’s no item for the hammer fairy.
New items:
https://pastebin.com/anP6iCj0
Also the user reports that trying the item ID of the Link Cable item from PLA crashed the game, so it’s likely unavailable.