Roblox Super Mario 64 Star Saving Help?

I am making a Roblox version of the popular classic Nintendo 64 game "Super Mario 64." I am very good at building and scripting but I came up on an issue with saving stars and stuff. The start place is the castle in the game and the different levels are different places in the Game. So whenever a player gets a star.. it plays the animation and sends the player back to the starting place. How do I make it so it saves the star on all places of the game. I have a star leaderboard chart that I want to show all the starts the player has gotten. Someone please help!!