I've been looking Around...... but i haven't come up with anything the Preset GUI's are -Leaderboard -HealthGUI -HotKeysGUI -HotKeysBorderGUI
My Roblox Profile name is BLUUAH, and the game im making is called LIGHTHOUSE
Use this in a LocalScript:
game.StarterGui:SetCoreGuiEnabled("All", false)
This will disable the player list (leaderboard), health, chat and backpack.
Good luck!