Thank you for playing my game! I had thought about making the background animated, but I was afraid it would distract attention from the movement of the ball! You are the only one so far who has played it to the end! Thank you! :-)
I understand (because I already made the mistake of making a background that was too flashy) hahaha
But look at the background of this game, for example. It's something very subtle, perhaps at first glance it seems like it's a static image, but it still gives a little movement and makes the game, overall, more dynamic. I believe your game would benefit from something like this. :)