For a little gamejam game this was really neat, had a nice narrative setup which connected to the theme really strongly, with a nice bit of exploration thrown into the mix for good measure with the coins. I think that the enemy variety could be improved a bit though, even if that final encounter was really awesome and surprising. I think that the music also got really repetitive by the end as well, mostly because of how short the loop was, even though it fit the setting really well, so maybe if you extended it out a bit it would fix the issue. Cool game, glad to have played it.
If you have the time, I'd really appreciate if you also checked out my game.