Great use of minimalism to capture the emotions of the player!
For me, I felt a bit like the theme is fighting with the central idea of the game. As the player, I feel the wave when I slam, but I don't have much actually agency in that moment. That leads me to focus more on the "puzzle"/optimization aspect of the game. This isn't really much of a criticism of the game itself, as this could easily be a full game (as others pointed out, big SUPERHOT vibes)
The ending hits pretty hard... and emphasizes that conflict about the player's agency. Hope you are doing okay <3