Check the sources, he is the small purple one with a football shaped head
http://www.youtube.com/watch?v=a6Cn6vEwdxQ,
http://www.youtube.com/watch?v=g8ZuyqxZuYQ&feature=related (check 00:50-03:25, 10:12-15:05, 20:48-23:20, 31:00-34:00
I think he is mentally retarded
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