Had a quick go. Did I expertly complete it, or completely flounder and have no idea what I'm doing? :D
Thanks for playing, even if it was a bit difficult for you . I can see the poor guy fell into a pit of madness when he started singing XD.
Even though you typed HELP several times, you didn’t notice the I or INVENTORY command, which is essential to know what you’re carrying and where there might be something that can help you.
Anyway, I’ll see if I can publish a solution in a day or two, since for now it’s only available in Spanish.