The slash and destroy is very juicy !!! Kudos on that, love the camera shake.
Personally I feel like the character controls quite fast, if you want a fast paced gameplay maybe give more screen space towards the front of the player so that its easier to see whats comming. I found myself memorizing the level instead of reacting to it.
The second level was very difficult with the 3 cubes shooting gears while platforming and sliding. I couldnt beat that level.
On the theme side, I didnt feel the game had too much to to with rewinding other than story wise.
Overall great work, keep it up and keep joining jams and improving.
Rem.