0:50! This was a pain with a track pad, oh my gosh, wish I had a mouse. Like someone else said, doesn't fit the theme that much, however, if you played into mutations more it definitely could! Maybe make mutations more visible, make them affect gameplay a bit? Instead of them just being a contextualization for damage. With more time, I'd say make walls and pits a bit more clear, make those changes to make it more mutate-y, and you have a solid lil' browser game!