In[]:=
gameTree2=DataStructure;g=gameTree2["Visualization"];g2=Graph[EdgeList[g]/.((VertexShapeFunction/.Options[g,VertexShapeFunction])[[1]])[[1,1]],VertexLabels->Placed[All,Center],VertexLabelStyle->{Directive[Black,12]},LabelStyle->{FontFamily->"Arial"},VertexSize->.65,ImageSize->{1000,500}]
Out[]=
