The webgl is not working for me. I had the same thing, to fix this go to  Build settings -> Player Settings -> Publish settings -> Compression format: disable

I liked the little frogs and the platform art, they are cute but i think you could definitely have made the platform jumps a bit more spaced, you know to make it a bit more challenging. Ooh but I loved the arrows since you can't see if you are going up or down it was a great indicator!

so cute. unique and charming art, good job