I got stuck on the level introducing the deadly projectiles. I like the concept of switching your 'platform totem', it has potential. But the platforming itself is frustrating. It feels floaty and its hard to predict how far you'll go based on your run-up. Also, I would rebind the pick-up key to something that was easier to simultaneously press the movement keys with.
But, the presentation is great, I can see you put a lot of work into it!