im trying to play the demo but it wont open shows the logo then closes.

Are they live? Cuz the Kickstarter one didn't pop for me ¯\_(ツ)_/¯

Does anyone else have a problem that the game crashes right after the startup? (After first pink screen) No error was shown.

When you press the Tether-Button without having picked up an Orb, you gain a little Bit of upwards momentum, wich let's you stay in the air a bit longer and allows jumps, that otherwise would not be possible. Is this intentional ?

At the passing out cutscene, opening the menu and selecting options bugged the cutscene and both Mae and the Blond character disappeared. The axolotl was still floating where it should be but the cutscene didn't continue after that. I fixed the issue by returning to the title screen and pressing continue, which returned me to my last checkpoint as expected. I did not try to recreate the issue so I don't know if it was a user issue. I hope this report helps as I'm very excited for the game's full release....