Bit tricky to control and to remember all the "who eats who" rules. Also sadly the web version was pretty buggy on Mac (not your fault). I think 4.3 will be much better for that.
After a little while of gameplay, you get the hang of the rules. It's mainly just how much time you want to commit to the game. Also, what is difficult about the controls? I'd like to know in-case I ever feel like updating the game after the jam.