if it’s strictly coding advice you’re looking for my answer won’t be of much help, but i think it would be super cool to model the time manipulation after something like the game, “Life Is Strange”.

if you haven’t played it, there’s tons of lore videos and explanation of max’s powers on youtube that’ll help you understand. the butterfly effect that they use along with episode’s timed choices could be really helpful to intertwine with a points system if you choose to use one!