I open the official Algodoo website, and then I go to my profile, and then I open inspect element, and run the code there. It returns my non-deleted scene download total for each scene page, I add up the totals and then divide by my number of non-deleted scenes to get the average. It is easier to calculate the average of other users because I do not have to take into account subtracting by deleted scenes.
I think you should complete my "Extremely Hard Tower Obby" and then THE IMPOSSIBLE OBBY 3, and then get far in my long jump obbies, and then you may have a slim chance at beating this. Do not worry though, part 4 will be way easier.