I did manage to fall off the map! But besides that, the platforming was really excellent. Jumping felt good and very responsive, there were some challenging sections. One criticism would be that there were a few "leap of faith" moments where the challenge was to fail several times until you learned where the target was. But this wasn't the case most of the time, and (other than the instance of falling off the map) I never got stuck unable to proceed because of this. With pushable blocks it's easy to create a situation where a level becomes unsolvable due to pushing a block into the wrong corner, but you seemed to avoid that pretty well with the level design--I never felt like I would have accidentally gotten stuck, it was apparent where I needed to push things.