Oh wow! This is one of most successful and creative implementations of the main and the optional theme! And I can't believe we both approached to it with a similar concept using vertices, you should definitely check our game too btw.
I think your game was pretty intuitive and easy to understand after a couple tries, you didn't even have to explain the mechanics in the game page so detailed. Game design was well made and it was super fun to play. I only tried playing it in Hard mode and thought the difficulty was very fair and enjoyable. I also liked how you added the power ups and the recovery mechanics.
It was a difficult task to put geometric shapes and "3... 2.. 1." theme together in a meaningful way and reflect it to the game mechanics. You guys nailed it! Totally deserves high scores for gameplay, creativity and theme!
I've read in one of your replies that you guys are new to the game jams, I hope you keep attending to game jams and learn to push your limits further each time!
Overall my opinion is that the game could feel so much better with a little polishing but I know how hard it is to spare time for that. Keep up the good work!
Oh here's my highest score on Hard!