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="Berserker_Lord_(first_battle)|11" />
  </query-continue>
  <query>
    <pages>
      <page pageid="12" ns="0" title="Speed Tricks" />
      <page pageid="36" ns="0" title="Bomb Jumps" />
      <page pageid="37" ns="0" title="Early Bryyo Expanions" />
      <page pageid="38" ns="0" title="Early Missile Expansions" />
      <page pageid="40" ns="0" title="What now?" />
      <page pageid="41" ns="0" title="Creche Transit SW" />
      <page pageid="44" ns="0" title="Early Seeker Missiles" />
      <page pageid="46" ns="0" title="Early Energy Tanks" />
      <page pageid="48" ns="0" title="Instant Unmorph" />
      <page pageid="50" ns="0" title="Temple of Bryyo SW" />
    </pages>
  </query>
</api>