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 alcontinue="BB:1-2:Torrential_Woods" />
  </query-continue>
  <query>
    <alllinks>
      <l ns="0" title="BB:*Currently Undecided*" />
      <l ns="0" title="BB:*Currently Undecided* (100,000,000 kills)" />
      <l ns="0" title="BB:*Currently Undecided* (100,000,000 kills, debug)" />
      <l ns="0" title="BB:*Currently Undecided* (40,000,000 kills)" />
      <l ns="0" title="BB:*Currently Undecided* (40,000,000 kills, debug)" />
      <l ns="0" title="BB:*Currently Undecided* (80,000,000 kills)" />
      <l ns="0" title="BB:*Currently Undecided* (80,000,000 kills, debug)" />
      <l ns="0" title="BB:-Famitsu Maximum Attack- (v2)" />
      <l ns="0" title="BB:-夕焼けの秘密基地- (v2) (???)" />
      <l ns="0" title="BB:1-1:Planet Ragol" />
    </alllinks>
  </query>
</api>