How to make it when you press a button another one shows up?

Here is my code:

local sound = game.workspace.Money
local cost = 0
local touchedalready = 0
local player = game.Players.LocalPlayer
workspace.FloorExtension.Touched:Connect(function(hit)
	repeat wait() until _G.button1bought == true
	script.Parent.Transparency = 0
	script.Parent.CanCollide = true
	script.Parent.Touched:Connect(function(hit)
	if hit and hit.Parent and hit.Parent:FindFirstChildOfClass("Humanoid") and game.Players:GetPlayerFromCharacter(hit.Parent) then
	local player = game.Players:GetPlayerFromCharacter(hit.Parent)
	local leaderstats = player:FindFirstChild("leaderstats")
		if leaderstats then
			local MoneyValue = leaderstats:FindFirstChild("Money")
			if MoneyValue then
				if MoneyValue.Value  >= cost and touchedalready then
					touchedalready = 1
					MoneyValue.Value = MoneyValue.Value - cost
					sound:Play()
					wait(0.01)
					script.Parent:Destroy()			
				end
			end
		end		
	end
	end)
end)

This doesn't work since it never sets the transparency to 0 or making it so you can collide with it, meaning its not working and i don't know how to get the button1bought variable since its not on leaderstats so i can't use that, and i know not to use _G but i don't know what else i can use for the variable.