Click to spawn a bouncy ball, also unless you were to count the background and the light source it's 100% pen. I believe my ellipse filler to be much more simple than Heldlaw's though it might have slightly less quality. Turbo warp link: https://turbowarp.org/600573190?clones=Infinity&hqpen&offscreen&fps=20 Supports a surprisingly high amount of bouncy balls.
Inspired by Heldlaw's Bouncy ellipse filler, but it's still all my work.
