The web version had some issues. The sound kept getting slower as I played, making the music unrecognizable quickly. But most importantly, the wall were invisible! :p I realized it only after beating it and looking as some screenshots. Guess I played it in hard mode. x) (I'm using Vivaldi on Linux)
Besides this, it's a neat mix between roguelike and metroidvania. The enemies pattern are varied and interesting. And the animals different abilities, that you have to use strategically depending on the turn, can make some great puzzles! It was pretty fun to play. :)