Thanks for the detailed feedback!
1. The sides are indeed a problem, we felt it was too easy when you can just stack tiles on the sides, but not being able to reach the player is frustrating. We'll try to come up with a better compromise after the jam ;)
2. Yes to that too, we already changed it once during the jam, but it remains hard to be precise. The problem was that if we slowed it down, it got hard to reach the player in time. Will have to think about that one too.
3. Really good idea, thanks! (For now, you can just place more tiles atop the player to try and get him unstuck ;)