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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.
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<?xml version="1.0"?>
<api>
  <query-continue>
    <allimages aicontinue="Bloom-2.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="Bad_collrect.png" timestamp="2007-01-15T08:50:19Z" url="http://supertux.lethargik.org/wiki/images/7/77/Bad_collrect.png" descriptionurl="http://supertux.lethargik.org/wiki/File:Bad_collrect.png" ns="6" title="File:Bad collrect.png" />
      <img name="Base.png" timestamp="2011-03-20T13:36:26Z" url="http://supertux.lethargik.org/wiki/images/8/85/Base.png" descriptionurl="http://supertux.lethargik.org/wiki/File:Base.png" ns="6" title="File:Base.png" />
      <img name="Bat_behaviour.png" timestamp="2007-01-14T11:18:06Z" url="http://supertux.lethargik.org/wiki/images/a/a3/Bat_behaviour.png" descriptionurl="http://supertux.lethargik.org/wiki/File:Bat_behaviour.png" ns="6" title="File:Bat behaviour.png" />
      <img name="Bell-r.png" timestamp="2007-06-04T19:55:16Z" url="http://supertux.lethargik.org/wiki/images/9/99/Bell-r.png" descriptionurl="http://supertux.lethargik.org/wiki/File:Bell-r.png" ns="6" title="File:Bell-r.png" />
      <img name="Biella_mrlog_limpy.jpg" timestamp="2005-08-17T20:59:25Z" url="http://supertux.lethargik.org/wiki/images/2/22/Biella_mrlog_limpy.jpg" descriptionurl="http://supertux.lethargik.org/wiki/File:Biella_mrlog_limpy.jpg" ns="6" title="File:Biella mrlog limpy.jpg" />
      <img name="Bigfoot.png" timestamp="2009-07-02T05:04:52Z" url="http://supertux.lethargik.org/wiki/images/9/9c/Bigfoot.png" descriptionurl="http://supertux.lethargik.org/wiki/File:Bigfoot.png" ns="6" title="File:Bigfoot.png" />
      <img name="Block.jpg" timestamp="2009-06-12T14:47:08Z" url="http://supertux.lethargik.org/wiki/images/3/34/Block.jpg" descriptionurl="http://supertux.lethargik.org/wiki/File:Block.jpg" ns="6" title="File:Block.jpg" />
      <img name="Blocks_containing_special_things.jpg" timestamp="2007-12-04T18:30:57Z" url="http://supertux.lethargik.org/wiki/images/6/6a/Blocks_containing_special_things.jpg" descriptionurl="http://supertux.lethargik.org/wiki/File:Blocks_containing_special_things.jpg" ns="6" title="File:Blocks containing special things.jpg" />
      <img name="Bloom-0.png" timestamp="2011-05-12T18:11:34Z" url="http://supertux.lethargik.org/wiki/images/5/5a/Bloom-0.png" descriptionurl="http://supertux.lethargik.org/wiki/File:Bloom-0.png" ns="6" title="File:Bloom-0.png" />
      <img name="Bloom-1.png" timestamp="2011-05-12T18:12:29Z" url="http://supertux.lethargik.org/wiki/images/4/49/Bloom-1.png" descriptionurl="http://supertux.lethargik.org/wiki/File:Bloom-1.png" ns="6" title="File:Bloom-1.png" />
    </allimages>
  </query>
</api>