Cool concept, your echolocation looks and works great! I did headbutt some spiders too many times initially out of confusion but soon started to enjoy munching down on some bugs. The bobbing was a bit too much for me personally however I noticed you had settings to adjust it which was appreciated!
Just a note regarding the windows build, it launched in a weird aspect for me so part of the game was beyond my screen until changing resolution and I also accidently entered what I realized was debug mode by pressing 'F'. Might not want that to be as easily accidently accessible!
Great work!