This game is sick af. The sound design is really good (those footsteps are super scrumptious), but there was a bit of a missed opportunity to utilize stereo sound (and the mono music also weirded me out though I think I might see the rationale behind it). It got a bit frustrating admittedly, having to wait for the cooldown to end to use the sonar again - maybe have it have less cooldown but remove the revealed platforms if reactivated prematurely. But I got through it eventually, and I think you exhausted this single concept perfectly.
Also, very nice touch having a frame rate limit in the options.