Several "Work in Progress" projects were launched years ago. These patches generally cover the main menus, basic battle UI, and character names, but rarely include full story translations.
Even with a partial English patch, Ultimate Mission X is worth playing for its sheer volume of content: dragon ball heroes ultimate mission english patch
Place the extracted romfs files into that directory. On your 3DS, hold the Select button while booting to enter the Luma configuration menu and ensure "Enable Game Patching" is checked. Key Features of Ultimate Mission X Several "Work in Progress" projects were launched years ago