local Player = game.Players.LocalPlayer;

while true do
    pcall(function()
        local mypos = Player.Character.HumanoidRootPart.CFrame.p;
        Player.Character.Humanoid.WalkSpeed = 80;
        for index, value in next, workspace.dungeon:GetDescendants() do
            if (value:FindFirstChildOfClass("Humanoid") and (value ~= Player.Character)) then
                if ((value.HumanoidRootPart.CFrame.p - mypos).Magnitude < 20) then
                    value.Humanoid.Health = 0;
                end;
            end;
        end;
    end);
    wait(0.15);
end;