Nice use of the "echolocation" mechanic, good idea. As others said the controls need to be worked on a little bit, but otherwise really cool. Well done!
PS: and the 1-bit art was a perfect touch for this type of mechanic, nice thought :D
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Happy to hear liked the art style, we decided to go that way to better highlight the echolocation mechanic as a main focus and so that I could learn the shape language of pixel art without worrying about colour palettes and all that stuff. Glad you enjoyed it and I hope the controls weren't too frustrating to play with. Thanks for playing!