All the keys seemed to be working for me, but 'e'. I'm playing on Firefox, and I could not figure out how the echolocation works. I could not hear anything different to indicate which direction I should go to. I can hear the background noise and the sounds I make when I move. The instructions are clear and the audio with good quality.
Viewing post in Midnight Echoes jam comments
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.