Game's Single Intance bypass

Hello I'm new in VB, I have successfully embedding external application in my form now my problem is the game "Growtopia" have security it can only run in single instance... now I'm looking for an answer that is it can possible I can bypass the game's single instance thing? Hope you can help me.

 Dim p As Process
        Dim matches() As Process = Process.GetProcessesByName("Growtopia")
        If matches.Length = 0 Then
            p = Process.Start("Growtopia")
            p.WaitForInputIdle()
        Else
            p = matches(0)
        End If
        SetParent(p.MainWindowHandle, Panel1.Handle)
        ShowWindow(p.MainWindowHandle, SW_MAXIMIZE)

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