Hi. What a neat way to interpret the theme of this jam. I like it.
I also dig your minimalist art style - very clean without being sterile.
The game play was a pretty standard platformer experience.
Here, a little indicator or progress bar that shows how many more pieces (polygons?) you need to become a higher shape would be cool. As it is, it feels a bit arbitrary. But that just nitpicking.
Also maybe you could have added a buffer zone to your jumps that allows for more forgiving jumps. They weren't particularly hard but some jumps felt as if I should have been able to still jump but instead I fell.
Thumbs of the Diegetic UI and the voice produced sounds. :)
Well done.
*Comment Pact Club*