Sorry for not being able to talk earlier. I am usually too busy to talk on weekdays.
I don't know what caused Moosh's sword bug. Are you playing in the right version? It should be the latest version of 2.50.1 from the ZeldaClassic.com downloads page.
Recently, I released version 1.1 of the quest in order to help with some of the problems brought up in Marv Albert's review. I hope this helps.
Out of curiosity, has anyone found the hidden bonus dungeon? I worked hard on making its boss.
Yes I have if it's called level 0 but I haven't been able to beat him yet.