I’ve made a little script with a working time stop from “JoJo’s Bizzarre Adventure”
It works but there is some delay between server and client even with RemoteEvents so it may look a little messed up but it’s working so 
Here is a showcase.
Freely open for feedbacks - The script still needs a lot of work to look better and i have some ideas about.
That looks really good. Great job.
just swap out the sound effect for activating ZA WARUDO every time
sounds a bit weird having the same sound play again and again
like the first time the sound effect is just “ZA WARUDO” and then next time the sound effect is “ZA WARUDO STOP TIME” something like that
You could fix the delay by freezing everything on the client side immediately and let the server catches up
Heres my idea.
Make gravity very low and everyone slow before it fully stops time.
Because in JJBA, they could still walk and projectiles etc would move before stopping entirely.
Its not an instant time stop, as shown in the final battle when Dio begins to freeze.