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>
    <allredirects garcontinue="代表取乱役" />
  </query-continue>
  <query>
    <pages>
      <page ns="0" title="フェスタデ" missing="" />
      <page pageid="152" ns="0" title="じゃがまる" />
      <page pageid="159" ns="0" title="つるら" />
      <page pageid="169" ns="0" title="よねすけ" />
      <page pageid="70" ns="0" title="カズキタ" />
      <page pageid="5" ns="0" title="カズキタカノ" />
      <page pageid="100" ns="0" title="クソ綺麗なオバサンの金マンコ" />
      <page pageid="72" ns="0" title="クリゲウィキ" />
      <page pageid="38" ns="0" title="ペラワン" />
      <page pageid="106" ns="0" title="ローラ・チャン" />
    </pages>
  </query>
</api>