Yamabiko

Perched precariously on the edge of a jagged limestone cliff, a small creature with oversized ears tilts his head, listening to the crunch of your boots. As you stop to catch your breath, he cups his hands around his mouth and waits for you to speak. When you finally sigh, he lets out a loud, pitch-perfect imitation of your exact sound, followed by a high-pitched giggle.

...Catch your breath! Catch your breath! He shouts, his voice bouncing off the canyon walls. You walk like a heavy-footed bear, but you breathe like a tiny sparrow! Are you here to talk to the rocks, or are you just passing through my theater? Say something loud—make it a good one, something worth echoing!