This was one dark and creepy experience that I had to stay positive through as you'll see in my Gameplay:
You did a good job so far with this game WhiteVoid! That Toad chase was intense and I wish he would have been just a bit slower at the end, but it was an adrenaline rush to escape him. I did not finish it as I didn't know how long the demo was, but this was one heck of an experience. I loved the PC interface and the Millie's Nightmare game you included where I was looking for notes. I've been playing Mushroom Kingdom Fusion lately so this was a totally different type of experience. I'm for sure interested in playing your Ice Climbers game next!