Hi there Sunetraalex, forgive us for changing our minds on this ruling but we've determined that we'll allow slight asset variances between web and downloadable versions of games as long as the downloadable version follows the rules for the sake of optimization. We recognize that not all potential players may have the bandwidth or storage to download many games at a time, so offering a web version that is accessible to more players is beneficial.
If applicable, we recommend that you note if there are any differences between web and standalone versions of your game in your page.
We will update the FAQ soon with this new ruling.