I really like this echolocation-like gameplay mechanic!! Very unique, it isn't something I think I've seen before!
I will say, I was a bit confused when I first played because I was loaded into a randomly-generated map (I assume) and the only path was a straight line with a spider on it LOL
Also, I think maybe a cooldown on the ribbet-ing would be nice, because at the moment, you can just spam it for infinite visibility and it removes a potential layer of skill expression. The spiders are also pretty difficult to run from once they have you in their sights, but I might just be bad at the game :P
Keep it up on this game, I'd love to see where it goes!