really neat little game! the graphics are simple but i think more complex graphics wouldve damaged the vibe of the game, so i think you made a good decision sticking to isometric shapes.
interesting take on the theme! glad to see some originality
my only real critique is that i never felt like i had room to strategize, i always felt like i was just blindly hitting the ball off into space and hoping to hit the shapes.
but ultimately this was a very fun and therapeutic experience, primarily due to the high quality sound design, and i cant wait to see what you do in future :)