So the other day I was playing around with Phantasy Star on the Meka emulator with its memory editor and stumbled upon something really interesting, some hidden items that, as far as I know, are not found in the game!
The two hidden items were "M SYSTEM" and "ZILLION"
Both items cannot be used (it says there is no need to use that item) nor sold at the shops.
If anyone wants to see this it can easily be done with the Meka emulator, just open up the memory editor and scroll down to line C4C0 (these are your items, to use the new items you have to replace existing items, so buy a couple colas) and replace two of the item's code (cola shows as 24) with 3D(M SYSTEM) and 3F(ZILLION)