Checking if player is playing minigame?

Hey, me again... I have a GUI in which players can press spectate to not play the next minigame. The problem is, this has its own script and the script below is in my minigame script.

I need to set up a boolean to check if the player is spectating or not, and if they are they won't earn points as stated below. But if I use a global variable, surely all players would be classed as spectating if one player presses the button.

Basically for this script to read my other one in the GUI I would have to use a global variable, and if I do every time one person presses the button and changes that global variable, it will change for everyone.

for i,v in pairs(game.Players:GetPlayers()) do
            isplaying = v:FindFirstChild("IsPlaying")
            if (isplaying) then
                if (isplaying.Value == true) then
                    v.leaderstats.Points.Value = v.leaderstats.Points.Value + reward
                end
            end
        end