Status changed to unfinished. It explains in the description "it only translates story text, but not battle and menu text". Even the menu and battle screenshots don't have any Vietnamese in! I really wonder why marking a story text-only translation as fully playable...
New version update with bugfixes from KujaKiller's latest update of "Mega Man 3 Improvement" as well as some minor level design and damage value tweaks based on feedback.