BERLIN, GERMANY - JANUARY 26: A video game joystick lies next to an exhibit at the Computer Game Museum (Computerspielemuseum) on January 26, 2011 in Berlin, Germany. The museum, which opened January 21, traces the evloution of computer games through approximately 300 exhibits. (Photo by Sean Gallup/Getty Images)

BERLIN, GERMANY - DECEMBER 04: A guest shows tattooed sign 'unbreakable' at the Berlin Tattoo Convention at Tempelhof Airport on December 4, 2010 in Berlin, Germany. The Tattoo Convention takes place for the 20th time. The organizers expect over the three days over 15,000 visitors. There are artists from Japan, China, Taiwan, USA, Canada, Australia, New Zealand, Tahiti, Samoa, and from all European countries as guests, who come up with the latest technics, designs and color creations. (Photo by Carsten Koall/Getty Images)