I'm not sure your game is working in WebGL. When I start the game I'm prompted with levels but no way to select anything.
When you pressed the start button, you should see a screen like this. After this you can select the Level 1. Could you please post a picture of the problem you encountered?
Sorry it was my laptop. I tried it on my desktop and it worked just fine. I had a lot of fun playing :)
We are very happy that you enjoyed playing the game. Again thanks for your comment. :D