I want to make a script where, when a certain player buys a game pass, they will receive a certain hat and 30 walkspeed. And that they will keep it upon death. How would I go about doing this? I know I have to use MarketService and AssetID, but I have no idea on how to use them for this purpose. So, I'm sorry if this is requesting.
Do some research on the wiki, find out how to check for game passes. After that you can do something similar to this:
game.Players.PlayerAdded:connect(functoin(p) p.CharacterAdded:connect(function(c) if pass then --Gives hat --Gives walkspeed else return end end) end)