Thanks for playing and for the feedback!
I was expecting the difficulty to drastically go down once the player would know the layout of the map and what can be "walked" under, so I added quite a lot of twist and turns, and dead ends you could get caught in while escaping, but balancing giving the player escape routes, while not letting them escape too easily was difficult. I agree that the player collision isn't very good, I adjusted it a couple of time, but was never really satisfied with it. I'm not sure if it's my use of one-wide path in the map, or the collision shape of the player itself.
For the hiding mechanic, I think my choice of using space bar make sense for the gameplay aspect since it's the most accessible key, but it does make it less recognizable than a letter key, for sure. A title screen with the controls listed would have probably helped with that (while also telling you that there is, indeed, a hiding mechanic).
Also, I'm glad you like the name!