Reverse Chat

local mt = getrawmetatable(game);
local old = {};
for i, v in next, mt do old[i] = v end;

setreadonly(mt,false)

mt.__namecall = newcclosure(function(...)
    local method = tostring(getnamecallmethod());
    local args = {...}

    if method == 'FireServer' and args[1].Name == 'SayMessageRequest' then
        local t = {}
        local string = tostring(args[2]);
        local number = #args[2]

        for i = 1,#args[2] do
            table.insert(t,tostring(string:sub(number,number)))
            number = number - 1
        end
        args[2] = tostring(table.concat(t))
        return old.__namecall(unpack(args));
    end
    return old.__namecall(...)
end)

setreadonly(mt,true)