This is the most ridiculous thing i have ever seen posted. Try to be a little more creative perhaps? It doesn't have to be about rewinding time.
You could think of it in more of an abstract way. Or try looking for synonyms for the word Rewind.
Maybe you arnt manipulating time, perhaps you are rewinding videos/movies, which reveal something sinister when played backwards. Or perhaps you have to go back through levels from a different angle.
It's not like your game will be disqualified from the jam if it doesn't fit the theme so obviously.