I've gotten on to my second game using cocos creator and the experience has been pretty good so far. The UI is intutive, and the best part is that the engine is modular. you can literally strip away the pieces that you don't want and build a lean build that is perfect for the mobile web. The first game i created was an endless runner with a car in it to put mildly :) One major issue we have been facing was figuring out the particle system. There is a 2D particle system that can render as a flat plane in the 3D world. Fortunately it rotates in 3D and can be positioned in 3D. We had to tinker around but were able to get it to look the way we wanted it to. The second game is a rolling cube game, with some puzzle elements in it. I've been toying around with the idea of creating these "scenarios" for each section of the game and the user goes through them in a random order and it creates a good feel of randomness. This will eventually be used for creating a scena...
Some Random Stuff i work on.. apart from my job.