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>
    <allimages aicontinue="20150223060035|Scan_offset_101.png" />
  </query-continue>
  <query>
    <allimages>
      <img name="ATEX_example_crunchy.gif" timestamp="2016-02-29T01:36:16Z" user="Bearborg" url="http://www.metroid2002.com/retromodding/images/6/66/ATEX_example_crunchy.gif" descriptionurl="http://www.metroid2002.com/retromodding/wiki/File:ATEX_example_crunchy.gif" ns="6" title="File:ATEX example crunchy.gif" />
      <img name="ATEX_example.png" timestamp="2016-02-28T23:46:32Z" user="Jackoalan" url="http://www.metroid2002.com/retromodding/images/7/7d/ATEX_example.png" descriptionurl="http://www.metroid2002.com/retromodding/wiki/File:ATEX_example.png" ns="6" title="File:ATEX example.png" />
      <img name="ATEX_example_css.png" timestamp="2016-02-28T23:45:26Z" user="Jackoalan" url="http://www.metroid2002.com/retromodding/images/9/99/ATEX_example_css.png" descriptionurl="http://www.metroid2002.com/retromodding/wiki/File:ATEX_example_css.png" ns="6" title="File:ATEX example css.png" />
      <img name="AnimatedscanFinal.gif" timestamp="2015-07-03T09:16:07Z" user="Darkeye" url="http://www.metroid2002.com/retromodding/images/a/a7/AnimatedscanFinal.gif" descriptionurl="http://www.metroid2002.com/retromodding/wiki/File:AnimatedscanFinal.gif" ns="6" title="File:AnimatedscanFinal.gif" />
      <img name="Animatedscan.gif" timestamp="2015-07-03T09:06:46Z" user="Darkeye" url="http://www.metroid2002.com/retromodding/images/e/ee/Animatedscan.gif" descriptionurl="http://www.metroid2002.com/retromodding/wiki/File:Animatedscan.gif" ns="6" title="File:Animatedscan.gif" />
      <img name="Animatedscan.png" timestamp="2015-07-03T08:50:55Z" user="Darkeye" url="http://www.metroid2002.com/retromodding/images/c/c5/Animatedscan.png" descriptionurl="http://www.metroid2002.com/retromodding/wiki/File:Animatedscan.png" ns="6" title="File:Animatedscan.png" />
      <img name="Scan_offset_12.png" timestamp="2015-02-23T07:19:59Z" user="Darkeye" url="http://www.metroid2002.com/retromodding/images/e/e9/Scan_offset_12.png" descriptionurl="http://www.metroid2002.com/retromodding/wiki/File:Scan_offset_12.png" ns="6" title="File:Scan offset 12.png" />
      <img name="Scan_offset_11.png" timestamp="2015-02-23T07:19:36Z" user="Darkeye" url="http://www.metroid2002.com/retromodding/images/a/ac/Scan_offset_11.png" descriptionurl="http://www.metroid2002.com/retromodding/wiki/File:Scan_offset_11.png" ns="6" title="File:Scan offset 11.png" />
      <img name="Scan_position_99.png" timestamp="2015-02-23T06:48:24Z" user="Darkeye" url="http://www.metroid2002.com/retromodding/images/9/9e/Scan_position_99.png" descriptionurl="http://www.metroid2002.com/retromodding/wiki/File:Scan_position_99.png" ns="6" title="File:Scan position 99.png" />
      <img name="Scan_position_10000.png" timestamp="2015-02-23T06:03:42Z" user="Darkeye" url="http://www.metroid2002.com/retromodding/images/c/c3/Scan_position_10000.png" descriptionurl="http://www.metroid2002.com/retromodding/wiki/File:Scan_position_10000.png" ns="6" title="File:Scan position 10000.png" />
    </allimages>
  </query>
</api>