Thank you very much! I'm working on a full version. :)
1. That's a very good point; it might be a bit tough to determine if a movement changes anything or not but I'll put it on the to-do list; I guess same goes for walking against a wall and such!
2. Yeah, this needs work; it's a bit tough to decide how to layer stuff when you could have something like Grass is You and need to have it on top of stuff grass usually doesn't go on top of!
3. Not intentional, I've fixed it for the current version but didn't update the itch.io build before I started working on the full version. I probably should do another update to the itch.io version, though! :(