Cool game, I had some trouble getting the shield mechanic but I love the idea.
Music is nice, animations look crisp (thought slow as you wrote in your disclaimer.*).
Also had a point where I had to add King, 3, Jack and 5 together to make 25? don't think this is possible but I may just be bad at arithmetic haha
Great job, thanks for this.
*I also had the problem with low speed after building to WebGL, I'll give a beep if I figure out how to solve it.