Great! I played it again and the echolocation now works! I like the game concept a lot and I think it has a lot of potential! I just think even the very first level was already too hard . I think I got an idea of how the echolocation works, but it was really hard to know which direction I should go that would get me closer to the food. I think it could be a little easier to locate the food and the game could provide more assistance and cues to help master the echolocation, in particular in the intro level.