Nice concept! I like how rewinding and fast forwarding changes the speed of bullets! It forces you to strategize and move at the right timing. In a way, this is like a puzzle platformer even though there's no "puzzley" mechanics, and that's cool! One thing that could be improved is the player movement. It felt a bit slippery and kinda hard to stop moving.
Otherwise, this was a really nice take on the theme! You did a great job!