Chat Bubble overlap parts?

I have a script were it makes a NPC chat. But the chat bubble gets overlapped by a wall. Is it possible to make a chat bubble overlap parts? Note: I'm using game:GetService("Chat"):Chat()

local z = script.Parent.Zombie
local c = game.ServerScriptService.ChatScript
local num = 0

function Chat(chat)
    c.Chat.Character.Value = script.Parent.Name
    c.Chat.Value = chat
    game:GetService("Chat"):Chat(script.Parent.Head, chat, Enum.ChatColor.Red)
    print("Chatted")
end

z.Changed:connect(function()
    if z.Health < z.MaxHealth and num == 0 then
        Chat("YOU SHALL NOT PASS")
        num = 1
    elseif z.Health <70000 and num == 1 then
        Chat("You fool, once you get in, you won't exist anymore!")
        num = 2
    elseif z.Health <30000 and num == 2 then
        Chat("The Overseer has already overseen your foolish presence! LEAVE NOW!")
        num = 3
    elseif z.Health <5000 and num == 3 then
        Chat("You will regret later...")
        num = 4
    end

end)