In the tutorial, there's a transparent wall at the stage where you learn how to open doors from behind. There's a bug in normal mode. If you go to the right where the invisible wall is, you'll notice that a couple of trees are missing. In the secret ending, you can stand on the left table. I hope YOU, Nicec00lkidd, will fix these issues!
(Version-FFS DEMO Windows 64-32 bit 1.1b patched.)