This game feels extremely polished for a gam jam entry! The atmosphere is great, the tutorial blends extremely well with both the gameplay AND the narrative! Well done on that part. I also love the simplicity of the controls and the minimal UI. I think holding the current item is a great choice, much better than having an inventory or just another UI element.
MINOR SPOILER WARNING!
My only complaint is that the ending feels a tiny bit rushed. I didn't understand how much time the time machine reversed and feel like it would be better to have the ending text display while still having the game screen as background (maybe even with character movement) instead of plain black. Also, maybe make the ending narrative a bit more explicit. I get that it leans into the mystery theme of it all, but I felt that I did not get 100% of the ending, with no place to get an explanation.
Great job nonetheless!!