An hour or two before midnight...

I was all set up to submit to the jam, when I realized (not having tested in  html, like a dummy) that the 13th level (no lie) caused a game breaking bug. It literally just killed the game, leaving a black screen, and no audio.

You can play the level, but only in the windows download, I skipped over it in the html. 

What makes the 13th level so dangerous? Is it cursed? Well, it does have an unusual hill, and this can cause other small bugs, when the player collides with it. But other than that- something game killing? I have no idea.