actually you dont have to jump at the edge, i did it jumping right when it touches the platform and somehow got a smaller jump than normally that was just perfect here =)
tip: start keeping space pressed already in air :)
This is SO hard. I don't know, but I just can't get that jump right. Either I jump too early and fly over the goal, or I fall off the first platform when I jump too late, which happens most of the time because the turtle rolls down so fast it's extremely hard to hit the edge of the platform. ANNOYING!!!!