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 "RPGONE" but this physical release is strictly from Arctic cave gaming.
Quoted from "romhacking.net"
Another “filler” patch until the “real” one comes along, this is very well done, and if you don’t mind the occasional weird menu, you can definitely get through the game with this. Well, if it’s as complete as they say anyway. I don’t think I can play this game all the way through again. Anyway the game is basically complete, and uses the Neo Demiforce NES script as a basis. Stage 2 will fix all of the translation problems, as well as use a 100% brand new script. Hurray!
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