Thanks for writing very detailed review! Health bar is now fully visible after changing viewport settings and full screen button is also easier to see on page. Red dots were placeholder sprites and blue ones were for testing purposes before bouncy balls. They were meant to be replaced, but deveIoping final level and creating browser build took some time before deadline.
I thought about making second level longer, when developing game. I agree that it could have been longer. I was actually a bit surprised how hard first level become in it´s final version. I tested a bit today, what is the best way to get past spawning dog. If you first jump towards it before dog has teleported it teleports below and then you use another jump and land on top of it and walk past of it. I tested that 6 times and so far it has worked every time. It´s a tricky part for a sure. Another way is trying to retreat, where other dogs are and jump over it, but that doesn´t always work.