This was a very fun idea! I love the gothic/gory aesthetic. The movement felt almost a bit too much, once I started sliding down the hill I lost control very quickly and clipped through the gate. I wish more of the level leaned into the freedom provided by good movement, particularly early. The rewinding was a very cool take on the "past clones" mechanic that played so smoothly with this type of game.
I also made a first-person movement-based game, would be very keen to hear your feedback :)