These are English patched Wonderswan games both for the original Wonder swan and the Wonder swan color this translation was originally brought to you by "Kalas" but this physical release is strictly from Arctic cave gaming.
Quoted from "romhacking.net"
Kalas pretty much stuck to the original NES translation for his project, but there’s enough changes to make it his own. Obviously there wasn’t enough space for menus, as you’ll be faced with Ys/No menus quite a bit, for example. Not much point in messing with this now that Final Fantasy Origins is out, unless you like free stuff.
This game will only include one cartridge by itself boxes and manuals will come later down the line once translations are available and manufacturing can start