I promised myself I'd tackle this quest next (having finished two so far).
Difficulty aside (it's not easy even getting to the sword): I found two typos ("FUTHER" in Level 9, "EXPENISVE" in a 10-Rupee cave) and got frozen when I stumbled into Level 6 early.
I'm not selecting 'Could Not Complete' yet, in case there's a newer version out there. I downloaded from the link from the OP. If no one shows me a 'newer' version, I'll have no choice.
Not a good start.