The theme was "pressure", so I was hoping that the timer on the ball spawning and the moving spawn hole would apply "pressure" on the player to make a decision on when to spawn a ball. I wanted to convey as much of the upgrade in the sprite to save on development time, but a description system to clearly list upgrades would be better, 100%. And yeah, the balls overflowing from the top was something I didn't account for. I never thought to spam the button in the endgame to see what would happen. Glad you enjoyed it!