One of my favorite presentations in this jam - the visuals and the music all just pair so well together!!! *chef's kiss*
I also thought this idea was super original, you don't mention it in your description of how your game represents power, but I think that giving the player the 'power' to design the levels in order to beat theme really stood out to me :)
I think others have noted this but will mention them anyways in case it's helpful. Being able to reset without moving bumpers would be HUGE. When I was playing I would very carefullly place my bumpers to make my little optimization brain be happy and imagine how I'm going to hit every bumper and it'll be so perfect, and then when I would hit place and start the level, if the first ball didn't go how I imagined I would have to scratch all the time I built into placing the bumpers.
On a related note, I think having more predictable bumpers would really help with this as well. I felt like I couldn't predict how my balls would bounce which was tough.
You might enjoy our game as well! It lets players design levels as well so it might resonate :)
Amazing entry overall! Can't wait to see what you make next :)