That was a pretty interesting little experience! It's well put together for a jam game, and I think hits the theme of lost and found in a really neat way.
The visual style is simple, but I think fit the game better than it had any right to. The use of fog was a good choice. I really do like how sound was used for gameplay, though- it was hinted just enough, easy to follow and a nice change of pace.
I lost everything except the back key, which made movement really awkward. It's also very obtuse what to do at the end, and I was confused about how to retrieve my missing controls. However, I think all of these things work for this game.
I think the only real issue I had was that some of the text- especially the intro text- is hard to read. The font isn't all that legible and though the size is probably fine in a window, I played it fullscreen and it was huge.
Finally, I feel like the whole thing was supposed to be profound, but I didn't really understand it. This is on me, though, not on you.