alright, let's look at the medium Ball_02 first:
- The beginning until it hits the wall looks generally good! There are some little tweaks I would do. Make sure the screen right translation at the beginning doesn't have too many keys on it. There's a little slow down around the x14 area and then a speed up around the x22 area. It just should nice and even with a little gradual acceleration before it falls off the first object. The rest looks good!
- after the ball bounces off, around x70, it suddenly speeds up! The momentum is suddenly really strong again, so keep it down, so it fits more with the timing at the beginning. The bounces will be smaller and it will travel less over time, it can't just accelerate. Then watch your spacing after x79. From x79 to 80 it pretty much stops moving screen left and after that it continues the translation (after a few bounces the ball would also continue to rotate counter clockwise, especially at the end when it rolls).
Now the bouncinb balls_02:
- the only one I would tweak a bit is the balloon on the right. It's a bit too even. I would add a little bit of acceleration towards the end before it hits the ground. Nothing huge, but just a little bit.