Sosasees
Thanks first for your inspiring feedback and very interesting video link (I heard and read a lot about Coyote time but there was much more explained and detailed in it).
I have just had another look at collision boxes I set for this kind of hazards and I think you're right, they could be a little smaller to make the game more forgiving. I'll take your advice if you think it may be a motive of frustration (especially beginners or no platformer-addicts), that's clearly not the goal. One thing I won't change, though, is the way Hop moves because all levels were built right from his jumping and rushing capacities and it took me a while to get a right "compatibility" between Hop and worlds he evolves in.
Consider your suggestion validated for upcoming beta 21 version. The box reduction won't be huge but that's a point I can not neglect. May I ask you if you want your name added to the "thanks" list (ABOUT menu of the game ?).