Very cool idea! Where did you learn this mechanic, on youtube or just stumbled onto it? I'd love to figure out a way to put that into a game somehow., this was my first Game Jam too. Great job!
Thanks. And congrats on your first game jam submission as well! I basically watched a couple of tutorials on Youtube on how to implement a time-rewind mechanism on Godot. You could start from those.
You're welcome. For the time-rewind mechanic specifically, I watched a video from a channel called 'MrElipteach'. Mostly, I just type the topic and watch through all the shorter tutorials to get some clarity.