If you can, please try again. Added hint.
Viewing post in Dark Whistle jam comments
Ok, now I got it, I didn't know there was a passage to the right of the roof. I reached the heart.
And look, I don't want to be "that guy" that points out stuff nobody wants to hear, but I don't think you're supposed to keep improving your game during the voting period, so be careful there. You're supposed to keep it the way it is from the moment the submission period ended and the voting started.
Still, thanks for modifying it, it's much more clear now!