Hi hi! So sorry for the late response!
Thank you so much for your comment and feedback ^^
The END(?) is meant to be reached without the code. There is a Tumblr blog with a password that will provide additional end-of-story lore — that is what the code is for. The link is a bit buggy within the Twine game, here is the link if you want to check it out: https://thisisreallytheend.tumblr.com/