Check out my first fully finished game with Construct 2, Penguins Way.
It is a Flappy Bird clone but it isn't a bad one, you can assure yourself with the links below.
Everything was done within 15 days with Construct 2 and CocoonJS Premium. Though it required some optimization and overall the Android version had more performance issues, it surely is doable and a very quick method, if not the fastest, for 2d mobile game creation. The source is with the links below. You can use it for whatever, just give credit where due. We released the iOS version a day ago.
Any ratings would be highly appreciated.
iOS | http://goo.gl/zrU7ib
Android | http://goo.gl/fYtSXK
Facebook | https://apps.facebook.com/penguinsway/
Source | http://goo.gl/k3fR7W