Ok I was finally able to rate/play your game! I figured the sound playing from only one side of my headset was an oddity only my computer had (after looking at the comments) so I didn't count it in my ratings!
I find the concept to be thrilling, however there is a huge question I have. If you're going back for a limited amount of time, but you can just always go back whenever you want to. Why would the time frame even matter? What I mean is I don't feel the rush to go fast except to not do it again. It's not like I want to go fast because the music pushes me to do it, it's too chill of a music for that. The wild consequences of one action is interesting though, reminded me of Monkey Island for the silliness!
Overall pretty good, I'm just left wondering if your core mechanic was implemented the most effecient way it could. Hope to see more in the future for sure!