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"?>
<api>
  <query-continue>
    <alllinks galcontinue="Evergreen" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="Bifrost (アレンジ)" missing="" />
      <page pageid="103" ns="0" title="Beautiful Night" />
      <page pageid="9" ns="0" title="Bifrost" />
      <page pageid="47" ns="0" title="Bifrost (アレンジ)" />
      <page pageid="15" ns="0" title="CG" />
      <page pageid="148" ns="0" title="Chronostalgia" />
      <page pageid="43" ns="0" title="Cry for me, cry for you -Everlasting Skyline-" />
      <page pageid="83" ns="0" title="Dancing Sword" />
      <page pageid="133" ns="0" title="Dear FFV-2" />
      <page pageid="68" ns="0" title="Dive to BLUE" />
    </pages>
  </query>
</api>