Hello thank you for the feedback! The hidden buttons and the disappearing/reappearing button is unfortunately part of the design we tried to give a hint in the first level by placing a few arrows just in case. As for the Coyote time, I do not think that is something we can implement in unity, I admit I have heard many people mention it this Jam but have never heard of it before, but we will be fixing the collider to allow the individual more leeway with jumping!
Viewing post in Patrick's Black and White World jam comments
Coyote time is a feature that you need to code it in your player controller (the one that controls the input/movement of the player). Is a really easy thing to add (that can be done pretty much everywhere, so i really don't see why it shouldn't be possible in unity), it requires like 2/3 mins to code, and you can find many great tutorial on how to implement it on the internet, like this one right there (obviously the vid isn't mine):
(Timestamp for coyote jump: 2:45)Hope it was helpful...