You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information.
<?xml version="1.0"?>
    <alllinks galcontinue="Baal|5817" />
      <page pageid="1731" ns="0" title="Velcro Kitty" />
      <page pageid="1936" ns="0" title="B Rabbit" />
      <page pageid="2333" ns="0" title="The Free World" />
      <page pageid="5470" ns="0" title="California Flash" />
      <page pageid="5816" ns="0" title="Amaterasu" />
      <page pageid="7109" ns="0" title="The Dead Beats" />
      <page pageid="7187" ns="0" title="The Barden Bellas" />
      <page pageid="7189" ns="0" title="The Treblemakers" />
      <page pageid="7191" ns="0" title="The High Notes" />
      <page pageid="10022" ns="0" title="B. J. and the Affordables" />