I really liked the setting. i was at first confused what that got to do with rewind but i got it :D (non-native english speaker) really cool and innovative approach.
i had some small hiccups with the camera clipping into the airboat and the airboat getting stuck somewhere very short but overall it feels very polished and the mentioned hiccups weren't that bad. Would love i you expanded this concept in the future to a explorative game-type where you can just see some small scenes that make you happy :)