plr = game:GetService("Players").LocalPlayer.Name

game:GetService('RunService').Stepped:connect(function()
for a, b in pairs(game.Workspace:GetChildren()) do
if b.Name == plr then
for i, v in pairs(game.Workspace[plr]:GetChildren()) do
if v:IsA("BasePart") then
v.CanCollide = false

end
end
end
end
end)


Workspace[plr].Head.Changed:connect(function()
for a, b in pairs(game.Workspace:GetChildren()) do
if b.Name == plr then
for i, v in pairs(game.Workspace[plr]:GetChildren()) do
if v:IsA("BasePart") then
v.CanCollide = false

end
end
end
end
end)