Thank you for testing ! Unfortunate that you couldn't get past the first wave :/
Have you tried the second mode ? By enabling "Perfect step" in the menu (after pressing the S key) it might be easier to step between columns :)
Indeed, I'm sure the jump doesn't look right, I tried to make it match the ball speed, but it was falling back too fast, and required a lot of accuracy. Anyway, it should feel like it's not correct, because this is not a jump involving true physic, I just hacked a random function, it could definitely be improved, this is noted !