I need to have a way to teleport all players from one game to another manually all at once.
You can. Using ipairs loop would get all the players and teleport them to a game.
local placeid = 0000000000 -- Replace this to your target gameId. for i, v in ipairs(game:GetService("Players"):GetPlayers()) do game:GetService("TeleportService"):Teleport(placeid, v) end