Run it
Copy the script and paste it into your executor.
-- ver 2
local scale = 6 -- Best to be around the height of your avatar or smaller (if it doesnt work)
local Parts = 500 -- The amount of parts to weld to the player to make it more heavy (might lag with alot)
player = game.Players.LocalPlayer
char = player.Character
for i = 1, Parts do
part = Instance.new("Part", char)
part.Size = Vector3.zero
weld = Instance.new("Weld", part)
weld.Part1 = char.HumanoidRootPart
weld.Part0 = part
part.CanCollide = false
part.Size = Vector3.new(scale, scale, scale) -- If the size is too high on any axis the player will freeze serversidedly but not clientsidedly
part.CustomPhysicalProperties = PhysicalProperties.new(100, 0, 0, 1, 10)
part.Transparency = 1
end
Increases the players density to around 10 million assembly mass so you can move heavy parts

Universal