-In my experience, WebGL works better here for casual games. I assume your game doesn't have anything specific that brokes that build so I suggest you try to build it on WebGL and try it out here, I'm sure you'll get more traffic.
-The controls feel weird, having to use the mouse for the double jump is kinda wonky for me.
-The bat is a little bit unfair because doesn't have a visual telegraph. Even a fast color blink or a small animation would telegraph it and make it feel more fair.
-Father time combat is a cool concept, a little too long for me but fun idea.
Keep at it!