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="Band_of_Flesh" />
      <page ns="0" title="Bag of Black Dust" missing="" />
      <page pageid="159" ns="0" title="Baba Zsuska" />
      <page pageid="465" ns="0" title="Baboon" />
      <page pageid="442" ns="0" title="Badger" />
      <page pageid="4534" ns="0" title="Baleog the Brute" />
      <page pageid="3790" ns="0" title="Ball Mill" />
      <page pageid="4050" ns="0" title="Ballista" />
      <page pageid="609" ns="0" title="Balrog" />
      <page pageid="3058" ns="0" title="Banana" />
      <page pageid="4356" ns="0" title="Band of Duality" />