I loved the look and unique style of this game, really interesting concept and shader ideas (especially appreciate the details, such as the meta-ball style blending and unique way of doing the shadowing).
I did enjoy the story & gameplay too, however - up to a point. I felt you managed to get a lot of character out of the geometry shapes, but some of the level design especially in later levels was edging on the side of frustrating rather than fun. I think progress respawn points will help a lot there, instead of having to redo the whole thing if you fall.
Absolutely stunning game, amazing job!
(P.S. it ran fine for me, 50-60fps)