According to Official Guinness Records,
From October 2008 to January 16 2009 of this year, Japanese video game publisher Hudson Soft received a total of 11 letters from Takao Ike (Japan), in which he threatened to send letter bombs and demanded 80 trillion yen in cash. In a signed affidavit, the suspect stated, "I did it because I posted my demands concerning the games, but the games didn't improve."
For a complete list of 2009 records, please visit 2009 Guinness Records in Japan.