hitboxSize = 13 -- Change hitbox size here
visiblity = 10 -- 10 for invisible, 0 for visible


local function expandHitbox(target) -- expand hitbox function (basic)  
   -- Prevent errors by waiting until everything loads in for the target
   repeat wait() until target.Character
   repeat wait() until target.Character:FindFirstChild("HeadHB")
   repeat wait() until target.Character:FindFirstChild("HumanoidRootPart")
   
   -- expand hitbox
   target.Character.HeadHB.Size = Vector3.new(hitboxSize,hitboxSize,hitboxSize)
   target.Character.HeadHB.CanCollide = false
   target.Character.HeadHB.Transparency = visiblity
   target.Character.HumanoidRootPart.Size = Vector3.new(hitboxSize,hitboxSize,hitboxSize)
   target.Character.HumanoidRootPart.CanCollide = false
   target.Character.HumanoidRootPart.Transparency = visiblity
   target.Character.RightUpperLeg.Size = Vector3.new(hitboxSize,hitboxSize,hitboxSize)
   target.Character.RightUpperLeg.CanCollide = false
   target.Character.RightUpperLeg.Transparency = 10
   target.Character.LeftUpperLeg.CanCollide = false
   target.Character.LeftUpperLeg.Size = Vector3.new(hitboxSize,hitboxSize,hitboxSize)
   target.Character.LeftUpperLeg.Transparency = 10
end

-- What players do we do this to?

for i,v in pairs(game.Players:GetPlayers()) do --exisiting players
   if v ~= game:GetService("Players").LocalPlayer and v.Character then
       expandHitbox(v)
           v.CharacterAdded:Connect(function(character)
               expandHitbox(character)
       end)
   end
end

game.Players.PlayerAdded:Connect(function(player) -- new member joins
   if player.character then -- if its a character
       expandHitbox(player)
   end
   player.CharacterAdded:Connect(function(joinedcharacter) -- if their character changes
       expandHitbox(joinedcharacter)
   end)
end)

while wait(1) do -- get rid of the FUCKING THIGHS i dont care i dont care its ugly it does its job
   for i,v in pairs(game.Players:GetPlayers()) do --exisiting players
   if v ~= game:GetService("Players").LocalPlayer and v.Character then
           expandHitbox(v)
   end
end
end