1. How does the world feel?
It feels a little big to me but maybe that's just because of the player speed. The trees and bushes add a lot to it. I'm not sure how much it would impact performance but some smaller grass/flower assets would be really cool to see.
2. How does player movement and camera movement feel?
As I said above player movement feels a little slow but I don't think that's a bad thing. It makes the world feel bigger. I didn't really notice the camera when I was playing which is a good thing. It felt very natural and the speed/leading of the camera felt great.
3. General things you like?
I like the sliding down hills mechanic, I thought that was a good touch. I'm excited to see the puzzles you come up with. I thought the wall that chased you was r a good touch. I didn't notice it at first, so I panicked when it first came around.
4. General things you don't like?
It would be nice to have a little control as you slide down the hill. Not a lot, just a slight bit of control to like strafe as you slide. It seems like the wall monster moves a lot faster than you do, so once it gets close there is no escape. Maybe a short sprint would help give the player an extra chance to get away?
5. What do you wish the game did?
Like I said above, I'm excited to see what puzzles you guys will add.
6. General reaction/comments?
I noticed a bug where you could jump up the sides of the puzzle cylinder. At the top you'll slide down though. I tried to recreate the bug on hills but was unable to.