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="B._Jenet|3586" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1438" ns="0" title="King of Fighters XI" />
      <page pageid="1490" ns="0" title="Kouzuki Mio (EFZ)" />
      <page pageid="2066" ns="0" title="The King of Fighters XI" />
      <page pageid="2211" ns="0" title="Marvel vs Capcom 2/Tiers" />
      <page pageid="2230" ns="0" title="Marvel vs Capcom 2/Low tiers" />
      <page pageid="2238" ns="0" title="Marvel vs Capcom 2/Assist Tiers" />
      <page pageid="2444" ns="0" title="Marvel vs Capcom 2/Team Hyper Combo" />
      <page pageid="11207" ns="0" title="Super Smash Bros./Link" />
      <page pageid="14706" ns="0" title="Marvel vs Capcom 2/Game Mechanics" />
      <page pageid="14707" ns="0" title="Marvel vs Capcom 2/Strategy" />
    </pages>
  </query>
</api>