Taking a look at it again, turns out the script I had dumped and was translated years ago had one big mistake.
The dumper dumped the item "Capsule" (substring code 03 00) as the PLAYER name tag (code 02 00).
I looked at the script and compared each instance of the PLAYER tag to find the error only affected five lines.
Three of them could easily be fixed having seen the context and knowing the error. (the rest of the lines with the PLAYER tag were correctly dumped)
The other two are (again, I have edited the Japanese text to replace the incorrect PLAYER tag they were dumped/translated with, with the correct CAPSULE.)
It's always a
saved a life![END]
つぎの レベルになるにはつきの きゅうめいカプセルを
You need to rescue the Lifesaving Capsule from the Moon in order to
reach the next level.[END]
(edited from the original translation with what I am guessing is about correct.
I'm guessing in this case there's a Level cap until you pass this event?)
Though it's been so long since I played the game I forgot how to get passwords in the game.
Too bad as I recall even editing the password input/output code long ago so it could take a proper English mixed-case character set, compared to the original which I think took katakana normal+dakuten as its input character set.
(according to GameFAQs, it was going to a Satellite)