A really cool game!! I like the artstyle, the animations and the mechanics. When I got hang of the controls the game was enjoyable to play.
I think the controls would be easier to learn with a interactable tutorial or even popups (like a popup with the button e shows up when you get near the rewindbox). I also think the game would benefit from have multiple ways to do stuff, you should, for example, be able to jump with both the "S" key and spacebar.
I also think some sound FX and Music would be great and a story to follow, something to keep the player interested about what is coming next and a goal with the hole game.
Awesome game man!!