First off, Construct 2 is great; I have been a coder for 15+ years, and this is the first "drag and drop" that I have used that is worth a hoot. I had a motorcycle game written in Silverlight, which a recent update broke, and I wanted to move it to HTML5. I was able to port 99% of the game into construct 2, and only a few minor pieces are still missing. Check it out:
Play MotoRider! now
It has 2 sections; a "Pro" section with levels that I created, and a "User" section in which uses can make their own levels, and share it with everyone. It also has a leader board for each level. There are still a few minor things that need attention, but it is very playable!