The GUI at the top right of the screen for the player's health. Is it possible to remove it? If so then how?
Put this LocalScript in StarterPlayerScripts (Or anywhere in the client really):
game.StarterGui:SetCoreGuiEnabled(Enum.CoreGuiType.Health, false)
You can use StarterGui.SetCoreGuiEnabled. On the Enum/CoreGuiType page it says there's a value "Health", which is the one you would use to remove the default Health GUI.