Thanks for the kind words and playthrough! We'll be checking it out in full tomorrow!
Sorry about the game breaking on you a bit! You broke it relatively early on by jumping on the boxes to get the second coordinates disk earlier than intended. This let you leave Boat Town without opening the shortcut door to get back.
As for the ending you're referring to it's deliberately obscure to get. I'm not sure I want to post the exacts on how to do it publicly, and I'm not sure if you can PM on itch.io.
If you're still curious, let me know the best way to contact you privately.
Thanks again!